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Volkswagen Passat 1.6 TDI 105hp BlueMotion Techn. Comfortl. common faults.

2005–2010, saloon, diesel, 105 HP.

The fault list covers: CAYC engine, MQ250, MQ350 transmission.

What you save stays on this device only. My saves

7 fault write-ups. 6 important. 8 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

critical1

1.6 and 2.0 TDI: the belt driving the oil pump runs in oil and crumbles

critical

On these engines the oil pump is driven by its own small toothed belt, and that belt runs in the hot engine oil. This is not the large timing belt that drives the camshafts, it is a separate belt in the lower part of the engine. In the oil the rubber hardens over time, its surface starts to crumble, and the loose particles block the suction side of the oil pump, so the oil pressure drops. If the belt snaps, the oil pump stops at once and the engine is left without lubrication within seconds. The rubber crumbs can also ruin the turbocharger and the camshaft adjuster, because they are lubricated from the same oil circuit. The maker specifies no replacement interval for this belt, so most cars still carry the one fitted at the factory, and the failures are reported above 150,000 km. Oil outside the specification and a stretched oil change speed the process up, because this belt ages in the oil. Replacing the belt itself costs between 200 and 600 euro, as long as the engine has not run without oil pressure.

above 150,000 km200–600 EUR

What to check

  • Ask whether the oil pump belt has been replaced, and if so at what mileage
  • Unscrew the oil filler cap and look for black rubber crumbs in the lubricant
  • Ask which oil was used and how often the engine was serviced
2 more steps in the write-up

expensive5

MQ200 / MQ250 manual gearbox: differential bearing and synchros

expensive

The light, magnesium cased MQ200 and the MQ250, sized for higher torque, are the most widespread manual gearboxes in the transverse engine VAG models. Both have the same two weak points, and both depend on use.

Show the rest

The first is the differential bearing: as it wears you first get a droning, then a whine from the thrust bearings of the output shaft. Left alone, the planetary shaft can fail and in extreme cases punch through the gearbox casing: from then on it is not a repair but a replacement.

The second is the synchros: they can start crunching at around 50,000 km with aggressive driving. This type does not like dumping the clutch or slipping it, and on a used car that is exactly what you have to listen for.

above 50,000 km

What to check

  • On the test drive with the window down, listen to the gearbox both off and on the throttle: droning or whining is suspect
  • Shift up and down quickly, especially into 2nd and 3rd: crunching means synchro wear
  • Try engaging 1st and reverse when cold: resistance here means wear
2 more steps in the write-up

EA189 TDI: EGR valve and particulate filter blocking

expensive

The EGR valve and its cooler block up with soot and oily deposits; the particulate filter cannot regenerate on short urban trips. The signs are reduced power, a warning light, and frequent regeneration. The software update after the diesel emissions affair made the EGR operate more often, which accelerated the phenomenon: the maker gave goodwill repairs in several cases.

between 140,000 and 160,000 km

What to check

  • Ask what kind of journeys the car did: a daily short urban run is the worst for the filter
  • With a code reader look at the stored faults (P0401/P0402, and P2002 for the filter)
  • Ask whether it received the post emissions affair software update, and when
1 more steps in the write-up

1.6 TDI (EA189): the water pump driven off the timing belt

expensive

On this engine the water pump is driven by the timing belt, and the plastic impeller of the pump, along with its electronically controlled shut-off ring, is the weak point: the ring sticks, and the impeller separates from the shaft or disintegrates. The first sign is slowly disappearing coolant and heating that stays cold for a long time. The real risk is not the price of the pump: the leaking water washes the grease off the timing belt rollers, and from then on the belt is what fails. If the timing belt snaps, the engine is badly damaged inside. That is why the two are always replaced together.

What to check

  • Check the level in the expansion tank, and ask whether it needs topping up
  • After a cold start watch how long it takes for the heating to warm up
  • Shine a light under the timing belt cover: dried, whitish coolant traces mean a leak
2 more steps in the write-up

B6 / B7: electric parking brake seizing

expensive

The servo motor of the electric parking brake seizes: the brake does not release, or does not apply properly. The repair is replacing the motor or the switch, and the rear caliper can be affected too. On a used car it is a separate warning sign if the seller blames only the switch.

What to check

  • Apply and release the electric parking brake five or six times in a row
  • Watch whether it releases evenly and without noise on both sides
  • Try it on a slope: does it really hold the car
1 more steps in the write-up

Dual mass flywheel: diesel

expensive

The internal springs of the flywheel tire, and the two discs knock against each other. The signs are a rattling or knocking from the bellhousing at idle and when releasing the clutch pedal, and vibration through the floor. If the clutch slips without a burnt smell, that also points to the flywheel. It is worth replacing in time: a disintegrated flywheel can destroy the bellhousing too. At a clutch replacement the two go together anyway.

What to check

  • At idle, without touching the clutch pedal, listen for the rattle from the bellhousing, then press the pedal: if it stops, that is suspect
  • Watch for the characteristic clatter on starting and switching off
  • Put your foot on the floor at idle: a noticeable vibration indicates tired springs
2 more steps in the write-up

comfort1

B6 / B7: electrical fault in the door lock module

comfort

The contacts of the lock module cannot take the current draw of the lock motor, so over time they burn through and their resistance rises. At first the door only sometimes fails to open or lock centrally, later not at all. The alarm often reports it too: the car sees a closed door as open. Typical fault codes are 67074 (central locking motors, electrical fault) and 67330.

What to check

  • Lock and unlock centrally ten times in a row, watching all four doors
  • Check on the dash whether it reports an open door while closed
  • Try it when cold too: at first the fault only appears at low temperature
2 more steps in the write-up

Checklist

Volkswagen Passat 1.6 TDI 105hp BlueMotion Techn. Comfortl.

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

Faults of this model

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

Official recall8 recallsShow

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

Most recent: 6 March 2018

18V148000AIR BAGS:FRONTAL:DRIVER SIDE:INFLATOR MODULEAIR BAGS:FRONTAL:DRIVER SIDE:INFLATOR MODULE6 March 2018 · NHTSA (USA)

Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2009-2014 Volkswagen CC, 2010-2014 Golf, 2010-2014 Eos, 2007-2010 Passat Sedan and Wagon, and 2012-2014 Passat vehicles. Upon deployment of the driver's frontal air bag, excessive internal pressure may cause the inflator to explode.

Risk: In the event of a crash necessitating deployment of the driver's frontal air bag, the inflator could explode with metal fragments striking the vehicle occupants potentially resulting in serious injury or death.

Remedy: Volkswagen will notify owners, and dealers will replace the driver's frontal air bag inflator with an alternative inflator, free of charge. The recall began March 16, 2018. Owners may contact Volkswagen customer service at 1-800-893-5298. Volkswagen's number for this recall is 69Q9. Note: This recall partially supersedes recall 16V-078.

The authority's notice

17V509000FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMPFUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP16 August 2017 · NHTSA (USA)

Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2009-2016 Volkswagen CC, 2006-2010 Passat and Passat Wagon vehicles. Interruption of electrical power to the fuel pump control module may cause the fuel pump to fail.

Risk: If the fuel pump fails, the engine will stall, increasing the risk of a crash.

Remedy: Volkswagen will notify owners, and dealers will replace the fuel pump control module, free of charge. The recall began June 26, 2018. Owners may contact Volkswagen customer service at 1-800-893-5298. Volkswagen's number for this recall is 20AE.

The authority's notice

16V078000AIR BAGS:FRONTAL:DRIVER SIDE:INFLATOR MODULEAIR BAGS:FRONTAL:DRIVER SIDE:INFLATOR MODULE10 February 2016 · NHTSA (USA)

Volkswagen Group of America, Inc. (Volkswagen) is recalling certain model year 2010-2014 Golf, 2007-2010 Passat sedans and wagon, 2012-2014 Passat sedan and Eos, 2009-2014 CC, 2009-2012 Audi Q5, 2010-2012 S5 Cabriolet and 2010-2012 Audi A5 Cabriolet vehicles. Upon deployment of the driver's frontal air bag, excessive internal pressure may cause the inflator to rupture.

Risk: In the event of a crash necessitating deployment of the driver's frontal air bag, the inflator could rupture with metal fragments striking the vehicle occupants potentially resulting in serious injury or death.

Remedy: Volkswagen will notify owners, and dealers will replace the driver's frontal air bag inflators, free of charge. Volkswagen issued an interim notification to owners on April 12, 2016, and will send a second notification when parts are available. Volkswagen will notify owners again once parts are available. Volkswagen owners may contact Volkswagen customer service at 1-800-893-5298. Audi owners may contact Audi customer service at 1-800-253-2834.

The authority's notice

A12/01380/23Safety recallInjuriesno date · EU Safety Gate

The airbag propellant may be faulty. In the event of an accident this can lead to the release of fragments from the inflator housing, increasing the risk of injury to the occupants. 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

The authority's notice

A12/01485/22Safety recallInjuriesno date · EU Safety Gate

The airbag propellant may deteriorate over time. In the event of an accident this can lead to the release of fragments of the front airbag from the generator housing, increasing the risk of injury. 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

The authority's notice

A12/01809/23Safety recallInjuriesno date · EU Safety Gate

The propellant can deteriorate due to high humidity and temperature variations. In the event of an accident in which the front airbag is deployed, this could result in fragments from the inflator housing coming loose and injuring the vehicle’s occupants. 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

The authority's notice

A12/01892/20Safety recallInjuriesno date · EU Safety Gate

The vehicles affected may have been fitted with Takata gas generators which could allow the ingress of moisture and thus result in the degradation of the propellant. If the airbag deploys, this could cause the gas generator to burst, causing metal parts to enter the vehicle's interior, causing injuries to the occupants of 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

The authority's notice

A12/1292/18Safety recallInjuriesno date · EU Safety Gate

The vehicles may have been fitted with an incorrect driver airbag during a components replacement. The airbag has not been tested and approved for these vehicles and might therefore not operate as intended.

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

The authority's notice

Engine and transmission

1 engines · 2 transmissions

CAYC · 1.6 TDI

77 kW (105 HP) · diesel

MQ250 · 5- or 6-speed manual

manual · 5–6 speed

Torque limit250 Nm
MakerVolkswagen

We built the code from the model and the gear count. The factory sheet does not state it. More than one transmission is possible. 5 gears = MQ250, 6 gears = MQ350.

Variant data

What is in this version

Factory data

Trim
Techn. Comfortl.
Body
saloon
Fuel
diesel
Transmission
manual
Engine size
1598 cc
Power
77 kW (105 HP)
Drive
FWD
Production
2005–2010

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

  • Engine oil and oil filter

    • LongLife30,000 km or 2 years(valid only with LongLife-approved oil)
    • 15,000 km or 1 year

  • Brake fluid change

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

  • Timing belt, 1.6 / 2.0 TDI (EA188/EA189/EA288)

    • 210,000 km(EA288, including the 1.6 TDI, with no time limit. 130,000 miles = 209,215 km. Parts maker repair specification, read by a human. The interval chart at https://www.rwcmotorsport.com/tech/tdi-maintenance.php gives the same figure independently.)

  • Coolant (antifreeze) change

    • first: 193,000 km or 10 years, then 97,000 km or 5 years(G13 / G12++: first change at 120,000 miles or 10 years, then every 60,000 miles or 5 years)

  • Fuel filter, diesel

    • 60,000 km or 2 years
All B6 versions

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