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Mercedes-Benz A-Class A 160 My First Star common faults.

2015–2018, hatchback, petrol, 102 HP.

The fault list covers: M270DE16AL engine, MB6MT-MFA transmission.

What you save stays on this device only. My saves

6 fault write-ups. All are important. 28 recalls.

If you know the year, pick it. Faults for other years drop out of the list.

Before you buy

Known faults

6 important faults

critical4

The timing chain stretches from 80,000 kilometres, and the cause is the exhaust-side chain tensioner: it is undersized and does not hold the chain properly. Short city use speeds the process up.

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The symptom is a rattle on a cold start. The stretched chain makes the timing slip, and if the chain jumps, the valves and the pistons meet.

above 80,000 km

What to check

  • Start it from cold and listen to the first seconds: a rattle points at the chain
  • Check whether the noise stays when warm: a chain fault does not fade with warming
  • Ask what kind of journeys it did: short city use speeds up the wear
2 more steps in the write-up

The service life of the timing chain on this engine is not outstanding: it has to be replaced between 100 000 and 150 000 kilometres. The stretching, however, is accelerated by another part, and that is worth knowing.

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The pulse wheel is press-fitted onto the camshaft, and it shifts a little with every start. That shifting significantly speeds up the stretching of the chain.

The symptom is difficulty starting, which can grow as far as complete failure. The engine starts hard when cold, and as the valve timing drifts it loses power.

The repair is therefore not just the chain: the stretched chain and the faulty pulse wheel have to be replaced together. If only the chain is renewed, the cause stays in place and the next chain stretches the same way. So look for both of them on the invoice.

On engines built before 2014 the phase regulators also failed quickly and started to crack. The maker revised them, which pushed the fault later, but did not eliminate it.

between 100,000 and 150,000 km

What to check

  • Start it cold: difficulty starting points to a stretched chain and a shifted pulse wheel
  • Ask for the invoice of the chain change and check whether the pulse wheel was replaced too
  • Listen to the engine cold: chain noise comes from the front of the engine
2 more steps in the write-up

On engines built between July and September 2015 the supplier made a mistake in the welding process, so the weld seam on the camshaft is not as it should be. According to the authority's notice the fault affects individual M270 and M274 four-cylinder petrol engines.

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On the affected cars the camshaft can break, and in doing so it damages the engine and shuts it off. The engine cannot then be restarted, the car comes to a halt, and in the words of the notice this increases the accident hazard.

As a precaution the maker prescribed replacement of the camshafts. The campaign started in November 2015, the target date for completion was the end of 2016, and the replacement is free for the owner.

At a purchase two things have to be cleared up: does the car fall into the production window, and if so, has the recall been carried out on it. The franchised dealer can answer that from the chassis number.

What to check

  • Check the production date of the engine: the examples from between July and September 2015 are affected
  • Ask whether the recall has been carried out, and ask for proof of it
  • If there is no proof, ask the franchised dealer with the chassis number: they can tell you
2 more steps in the write-up

In engines built between July and September 2015, the weld seam on a camshaft lobe can be faulty and the lobe can break off.

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With a broken lobe the affected valve does not open, the engine runs unevenly, and the broken piece causes damage inside the engine. The manufacturer issued a recall and the replacement is free.

What to check

  • Check the engine build date: units built between July and September 2015 are affected
  • Ask whether the recall was carried out, and ask for proof
  • At idle, watch the engine: it must not run unevenly or misfire
1 more steps in the write-up

expensive2

On the 2.0 turbo four cylinder (M274, and the transverse M270) the control valve of the crankcase ventilation system fails early. The official database holds 259 reports on it, almost exclusively on the 2015 to 2019 C 300 and GLC 300 versions.

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The symptom: the engine warning light comes on, and diagnostics returns a fault code complaining about crankcase ventilation valve performance. Alongside it you get a fluctuating idle, a whistling or sucking noise from the engine bay, and sometimes harder starting.

The valve is part of the intake system, and if it sticks open or closed the engine either draws false air or the pressure in the crankcase rises. The latter pushes the crankshaft seals out, and from then on you have an oil leak. The valve itself is a cheap part, but getting to it is not always cheap.

On the same engine generation the complaints also include 27 reports of a cracked piston (weighted to the C 300 in 2015 and 2017). That is much rarer. If the engine burns oil or knocks, do not think only of the ventilation valve.

The official data is American, and the 2.0 petrol is far more common there than in Europe.

between 64,000 and 145,000 kmreported complaints only

What to check

  • Ask for a fault code read and look for the code on crankcase ventilation valve performance: that is the characteristic entry
  • Listen to the engine bay at idle: a whistling, sucking noise points to a torn valve diaphragm
  • Look around the valve cover and the crankshaft seals for oil leaks: the consequence of raised crankcase pressure
2 more steps in the write-up

The electric thermostat can fail from 90 000 kilometres and sticks open. The coolant then circulates in the large circuit even while the engine should still be warming up, so the engine does not reach its 80 degree operating temperature.

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The control unit logs it too: code P0128 means that the coolant temperature stays below the regulating temperature of the thermostat. The symptom is that the engine does not warm up properly even after a long time, the heater is lukewarm, consumption rises and the engine management light comes on as well.

An engine running cold for a long time wears faster, because cold oil does not lubricate the same way and fuel dilutes it in a greater proportion. The thermostat is built into the coolant circuit, so its replacement involves draining coolant.

above 90,000 km

What to check

  • Run the engine for ten minutes: the temperature gauge has to reach its usual middle value
  • Turn the heating on: the air should be hot, not lukewarm
  • Have the fault codes read and look for P0128
2 more steps in the write-up

Checklist

Mercedes-Benz A-Class A 160 My First Star

First what you would check on any car. Then the faults of this model.

Before you buy

Checklist

The printed sheet starts with what you would check on any car. What you tick stays on this device only.

On every car

Ask the owner

vinkodex.com · Before you buy it, see what can go wrong.

Official recall28 recallsShow

The manufacturer fixes these for free at a franchised dealer. Ask with the VIN whether it was done.

Most recent: 1 September 2017

A12/1352/17Safety recallFire1 September 2017 · EU Safety Gate

The starter current limiter may be overloaded and overheat. As a consequence, the surrounding components could ignite, leading to a fire.

Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: 01/09/2017

We could not check this: model year. The authority's notice

A12/00017/22Safety recallFireno date · EU Safety Gate

A trapped particle may damage the sealing between the fuel rail and fuel injector, which could cause fuel to leak into the engine compartment. Consequently, leaking fuel may come into contact with hot parts of the engine, increasing the risk of fire. The product does not comply with the requirements laid down in the Regulation on the approval and market surveillance of motor vehicles and their trailers, and of systems, components and separate technical units intended for such vehicles.

Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: Unknown

We could not check this: model year. The authority's notice

A12/00040/20Safety recallInjuriesno date · EU Safety Gate

A weld on the seat-height adjustment system of the left-hand front seat may be defective and can break, causing the seat cushion to tilt forward in the event of a crash. As a result, the protective effect of the restraint system will be impaired, increasing the risk of an injury.

Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: Unknown

We could not check this: model year. The authority's notice

A12/00237/20Safety recallInjuriesno date · EU Safety Gate

The glass pane on the lifting/sliding panorama roof may not have been properly affixed. As a result, it may become completely detached, posing a risk to the following traffic.

Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: Unknown

We could not check this: model year. The authority's notice

A12/00346/20Safety recallInjuriesno date · EU Safety Gate

The occupant classification system for the front passenger seat may not be calibrated in accordance with the specifications. Consequently, an installed child seat may be identified as a person or a small, light person as a child seat. As a result, the passenger airbag could be activated despite the presence of a child seat or the passenger airbag could fail to activate despite the presence of a person on the passenger seat, increasing the risk of injuries.

Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: Unknown

We could not check this: model year. The authority's notice

A12/00488/20Safety recallEnvironmentno date · EU Safety Gate

Refrigerant of type R134a is used in the air conditioning system. As a result, the affected vehicles do not meet the requirements for type approval. The product does not comply with the requirements of the Type-approval directive.

Remedy: Type of economic operator to whom the measure(s) were ordered: Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: Unknown

We could not check this: model year. The authority's notice

A12/00730/21Safety recallInjuriesno date · EU Safety Gate

The polycarbonate roof panel located between the windscreen and the panoramic roof may not have been bonded correctly to the vehicle during a prior repair. In such cases, the adhesive bonding could gradually deteriorate and the panel could become detached from the vehicle, posing a risk to other road users. The product does not comply with the Regulation on the approval and market surveillance of motor vehicles and their trailers, and of systems, components and separate technical units intended for such vehicles.

Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: Unknown

We could not check this: model year. The authority's notice

A12/00857/21Safety recallInjuriesno date · EU Safety Gate

A bore hole in the universal joint on the steering shaft may have incorrect size. As a result, there could be play between the bearing fitted into the bore hole and the universal joint, which could cause the joint to become detached over time. This would impair the vehicle’s steerability, increasing the risk of an accident.

Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: Unknown

We could not check this: model year. The authority's notice

A12/00940/24Safety recallInjuriesno date · EU Safety Gate

The steering software may not correctly activate the fallback level in the event of a hardware failure. This could affect the power steering assistance and lead to the loss of steering capacity, increasing the risk of an accident. The product does not comply with the Regulation on the approval and market surveillance of Motor Vehicles and their trailers, and of systems, components and separate technical units intended for such vehicles.

Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Update of the electric steering software Date of entry into force: Unknown Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: Unknown

We could not check this: model year. The authority's notice

A12/01206/20Safety recallInjuriesno date · EU Safety Gate

The condensed water drainage hose of the air-conditioning system may not be properly fitted. In such a case condensed water from the air conditioning system could enter the passenger compartment of the vehicle, ending up in the footwells of the driver and passenger side and in the central tunnel. As a result, any electrical components installed there could be corroded and/or subjected to short circuits or leakage currents. As a consequence, the SRS control unit could stop working, the vehicle may fail to start, the engine emergency run could be activated while driving, and the functioning of other components (e.g. the fuel pump, automatic/manual emergency call) could be adversely affected.

Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: Unknown

We could not check this: model year. The authority's notice

A12/01236/20Safety recallInjuriesno date · EU Safety Gate

The driver and passenger airbags of the company Takata in vehicles with ammonium nitrate gas generators without drying agents could, under certain climate conditions, lead over time to a chemical change in the fuel. In the event of an accident triggering the release of the driver or passenger airbag, this change could cause the gas generators to burst. If a gas generator ruptures, the airbag would then have no restraining function and loose parts from the gas generator could reach the vehicle interior. This would increase the risk of injury for passengers.

Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: Unknown

We could not check this: model year. The authority's notice

A12/0138/19Safety recallInjuriesno date · EU Safety Gate

A metal chip formed during the assembly process within the ESP hydraulic unit could block a non-return valve. As a consequence, the non-return valve might no longer be able to close, affecting performance of the brake-pedal. This could increase the risk of an accident.

Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: Unknown

We could not check this: model year. The authority's notice

A12/0147/19Safety recallFireno date · EU Safety Gate

The flat conductor of the starter wiring has been incorrectly positioned, damaging the insulation of the flat conductor. The direct contact between the flat conductor and the car body may consequently lead to a short circuit and fire.

Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: Unknown

We could not check this: model year. The authority's notice

A12/0162/19Safety recallInjuriesno date · EU Safety Gate

No perforation has been made in the outer covering of the instrument panel to enable the deployment of the passenger airbag. In the event of an accident involving deployment of the airbag at low temperatures, sharp edges could be created on the instrument panel in the airbag's deployment area, damaging the airbag. Moreover, parts of the instrument panel may become detached, increasing the risk of injury to the occupants.

Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: Unknown

We could not check this: model year. The authority's notice

A12/01763/20Safety recallEnvironment, Fire, Injuriesno date · EU Safety Gate

The quantity of oil in the dual-clutch gearbox may be too low or too high. This can result in impaired torque transmission, gearbox failure and potentially increased CO2 emissions. In addition, in extreme driving situations, gearbox oil might leak onto the road, posing a risk to the following traffic. Moreover, the leaking gearbox oil might come into contact with hot components, increasing the risk of fire.

Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: Unknown

We could not check this: model year. The authority's notice

A12/01768/20Safety recallEnvironment, Fire, Injuriesno date · EU Safety Gate

The quantity of oil in the dual-clutch gearbox may be too high. This can result in impaired torque transmission and potentially increased CO2 emissions. In addition, in extreme driving situations, gearbox oil might leak onto the road, posing a risk to the following traffic. Moreover, the leaking gearbox oil might come into contact with hot components, increasing the risk of fire.

Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: Unknown

We could not check this: model year. The authority's notice

A12/0267/19Safety recallInjuriesno date · EU Safety Gate

A bolt in the locking mechanism of the articulated trailer coupling is defective. It could break while a trailer is being towed and consequently the trailer could detach, thus increasing the risk of an accident for following traffic.

Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: Unknown

We could not check this: model year. The authority's notice

A12/0269/19Safety recallInjuriesno date · EU Safety Gate

The locking mechanisms of the right and/or left backrest might not lock correctly. This might impair the restraining effect of the backrest so that in the event of an accident there would be an increased risk of injury to the occupants.

Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: Unknown

We could not check this: model year. The authority's notice

A12/0457/17Safety recallInjuriesno date · EU Safety Gate

Following the update of the control unit coding, the coding parameters of the control unit could be defective. This could give rise to various unplanned reactions in the vehicle: the wrong airbag could be triggered in the event of an accident, the airbag control unit may not recognise the belt buckle status, the engine control unit could be coded with a false maximum speed or various assistance systems may not function.

Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: Unknown

We could not check this: model year. The authority's notice

A12/0763/17Safety recallInjuriesno date · EU Safety Gate

The mixture ratio of the fuel in the inflators of the front-passenger knee, pelvic and side curtain airbags may not be correct. In the event of an accident requiring the deployment of the airbags, this could lead to the airbags not inflating properly.

Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: Unknown

We could not check this: model year. The authority's notice

A12/0829/18Safety recallInjuriesno date · EU Safety Gate

The adhesion of the lower part of the windscreen to the bodywork may be inadequate. In the event of an accident, the windscreen could become detached from the bodywork, thus compromising the protective effect of the passenger airbag.

Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: Unknown

We could not check this: model year. The authority's notice

A12/0852/18Safety recallInjuriesno date · EU Safety Gate

The casing material of the gas generator of the driver airbag may be defective. In the event that the airbag is deployed, the airbag may not protect the driver and detached parts might enter the passenger compartment causing injury to the vehicle occupants.

Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: Unknown

We could not check this: model year. The authority's notice

A12/0863/18Safety recallInjuriesno date · EU Safety Gate

Certain welding points in the area of the front wheel arch may be missing. If these welding points are not present, the structural behaviour of the vehicle's front section would be affected in the event of a crash.

Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: Unknown

We could not check this: model year. The authority's notice

A12/0876/18Safety recallInjuriesno date · EU Safety Gate

The welding of the mounting brackets on the ISOFIX child seat attachments may be inadequate. The mounting brackets could fail in the event of an accident.

Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: Unknown

We could not check this: model year. The authority's notice

A12/0948/19Safety recallInjuriesno date · EU Safety Gate

The welding of the brake pedal plate to the brake pedal lever may not be sufficiently strong. Applying pressure on the left side of the brake pedal might cause the pedal plate to tilt sideways from the pedal lever. This would impair the operation of the brake pedal, increasing the risk of an accident.

Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: Unknown

We could not check this: model year. The authority's notice

A12/1225/18Safety recallInjuriesno date · EU Safety Gate

The navigation software may be faulty, storing the wrong location of the vehicle. As a result, when the emergency call system (eCall) is used, the location communicated to the emergency centre might not correspond to the current vehicle location. In such cases, emergency services would not be correctly directed to the vehicle.

Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: Unknown

We could not check this: model year. The authority's notice

A12/1733/17Safety recallInjuriesno date · EU Safety Gate

The steering column is not sufficiently earthed. As a result, in the event of an electrostatic discharge, the driver's airbag may be triggered when not required. This could cause an accident.

Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: Unknown

We could not check this: model year. The authority's notice

A12/1892/19Safety recallInjuriesno date · EU Safety Gate

The belt anchor fittings for the front seats may not have been attached in accordance with the specifications. As a result, the anchor fittings could be detached in the event of an accident, increasing the risk of an injury to the occupants.

Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: Unknown

We could not check this: model year. The authority's notice

Engine and transmission

M270DE16AL

90–115 kW (122–156 HP) · petrol

MB6MT-MFA · 6-speed manual, transverse (Mercedes F-SG 310 / 711.6xx)

manual · 6 speed

Torque limit310 Nm
MakerMercedes-Benz

We built the code from the model and the gear count. The factory sheet does not state it.

Variant data

What is in this version

Factory data

Trim
A 160 My First Star
Body
hatchback
Fuel
petrol
Transmission
manual
Engine size
1595 cc
Power
75 kW (102 HP)
Drive
FWD
Production
2015–2018

Factory service interval

The manufacturer specifies this for this version. Of the mileage and the time, the one that comes first is the one that counts.

  • Air filter

    • 60,000 km or 4 years
  • Cabin (pollen) filter

    • 30,000 km or 2 years
  • Brake fluid change

    • first: 3 years, then 2 years(first change at 3 years, then every two years)
  • Spark plugs, petrol

    • 60,000 km or 6 years

Information, not an expert opinion

We write the descriptions, and we put the source next to them. A person reviews them before they go out. They are still information, not a technical expert opinion.

  • A fault on the list does not mean the car you are looking at has it.
  • A fault missing from the list does not mean the model is fault-free. Write-ups are made model by model. Not all of them are done.
  • You decide whether to buy. This is no substitute for an inspection. That needs a workshop and a history check.
Details in the terms