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Audi S5 Coupé 3.0 TDI quattro common faults.

2016–2020, coupé, diesel, 347 HP.

The fault list covers: DEWB engine, AL552 transmission.

What you save stays on this device only. My saves

3 fault write-ups. 2 important. 4 recalls.

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

Before you buy

Known faults

2 important faults

critical2

2.7 / 3.0 TDI V6: the rear timing chain and the oil pump drive

critical

The timing chain of the longitudinal V6 diesel runs at the back of the engine, on the gearbox side, so replacing it means taking out the engine or the gearbox. That alone makes it expensive, but the mechanism is the point: the chains stretch and the hydraulic tensioners lose their pressure. The first and only early sign is a 2 to 3 second metallic rattle audible on a cold start. If that is ignored, the chain jumps or breaks, and the engine is badly damaged inside. The same chain kit also drives the oil pump: if that seizes, the engine is left without lubrication.

What to check

  • Start it cold, in a quiet place, with the bonnet open: the rattle is audible in the first 2 to 3 seconds
  • Stand at the gearbox side of the engine: the noise comes from there, not from the front
  • Ask whether the chain and the tensioner were replaced, and ask for the invoice (it involves removing the engine)
3 more steps in the write-up

B9 platform: cold start chain rattle on the 2.0 TFSI

critical

After standing for a longer period, on a cold start you hear a rattling, knocking noise from the timing chain for a few seconds. The cause is oil pressure draining away overnight: the chain tensioner can only tension properly once the oil pressure has built up. A slack chain causes misfires and loss of power, and if it jumps a tooth the engine is badly damaged.

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It shows up on early (2016 to 2017) A4 B9 cars and on the A5 F5 2.0 TFSI alike: the same engine, the same platform.

The test drive does not show this, because a warmed up engine is quiet. The only reliable check is starting the cold, standing car: that is why you have to insist that the seller does not warm it up beforehand.

What to check

  • Insist on a cold start: the car should stand at least one night, and the seller must not start it before you arrive
  • At the moment of starting, stand next to the engine bay and watch the first 2 to 3 seconds
  • Rattling or metallic clatter from the timing side calls for immediate expert inspection
2 more steps in the write-up

comfort1

B9 platform: MMI (black screen, spontaneous restart)

comfort

On the infotainment of the B9 platform (A4 B9, A5 F5, Q5 FY) the most common complaint is a black screen, a unit that restarts on its own, and a boot that stops partway. A significant part of these are software in origin, not a hardware fault: an update installed at a franchised dealer resolves it.

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The buttons of the control interface form a separate branch: a control panel damaged by water ingress or a spilled drink does not respond, and that is a parts replacement. On early cars small electrical faults are common too: intermittent dropouts of the central locking, the parking sensors and the phone connection.

What to check

  • After switching the ignition on, wait for the full boot: a screen that stops or stays black is a clear sign
  • Press every button on the central control panel and turn the rotary knob: all of them must respond
  • Try the reversing camera, the audio system and phone pairing too
2 more steps in the write-up

Checklist

Audi S5 Coupé 3.0 TDI quattro

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 recall4 recallsShow

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

A12/0333/17Safety recallInjuriesno date · EU Safety Gate

Differences in the mixture ratio for the initiating devices for the airbags or seat-belt pre-tensioners could lead to the airbags or seat-belt pre-tensioners not activating 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

The authority's notice

A12/0698/17Safety recallInjuriesno date · EU Safety Gate

The micro gas generator of the rear seat-belt pre-tensioners may be incorrectly installed. As a result, in the event of an accident, it can come loose and parts may inadvertently enter the passenger compartment, causing 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

The authority's notice

A12/0713/17Safety recallFireno date · EU Safety Gate

The additional coolant pump can block due to foreign particles in the cooling system. This can result in the pump overheating which could lead 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: Unknown

The authority's notice

A12/0942/18Safety recallFireno date · EU Safety Gate

The auxiliary coolant pump may seize up. This could lead to the pump overheating after the engine has been switched off with the risk that the vehicle could catch 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

The authority's notice

Engine and transmission

DEWB

255 kW (347 HP) · diesel

AL552 · 8-speed automatic (longitudinal)

automatic · 8 speed

Torque limit700 Nm
MakerZF

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
Coupé 3.0 TDI quattro
Body
coupé
Fuel
diesel
Transmission
automatic
Engine size
2967 cc
Power
255 kW (347 HP)
Drive
AWD
Production
2016–2020

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)

  • 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 F5 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