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Before you buy a used Audi TT (8J).

2006–2014 · Petrol / Diesel · 4 engines

Taken only from Testigo's sourced sheets. Use it to question the seller and on the test drive: it does not confirm that any particular car is affected.

Audi TT (8J), real photo of this generation
Rudolf Stricker · CC BY-SA 3.0 · Wikimedia Commons · Photo source

The essentials.

Typical faults by engine

The period and mileage are those mentioned by each sheet's sources. They are not a maintenance interval and do not predict that any particular car will fail.

All versions

Sheets the catalogue links to all 4 of its engines.

  • A/C not cooling: N280 valveClimate control
    Period mentioned
    2006–2026
    Mileage mentioned
    The sheet does not mention a mileage.

    Applies if: Only if fitted with the air conditioning system described.

  • Haldex all-wheel-drive coupling pumpTransmission
    Period mentioned
    2007–2020
    Mileage mentioned
    The sheet does not mention a mileage.

    Applies if: Only all-wheel-drive versions (4Motion, transverse-engine quattro, 4x4 or 4Drive) with a 4th or 5th generation Haldex coupling.

1.8 / 2.0 TFSI · TTS (2.0 TFSI)

Petrol

2.0 TDI

Diesel

  • Cracked EGR coolerCooling / EGR
    Period mentioned
    Approx. 2010–2020
    Mileage mentioned
    The sheet does not mention a mileage.

These also apply, described above: DQ250 DSG mechatronic and oil

TT RS (2.5 TFSI)

Petrol

  • Low-speed brake squeal corrected with revised padsBrakes / noise
    Period mentioned
    Only production periods and VINs documented in the application conditions.
    Mileage mentioned
    The sheet does not mention a mileage.

    Applies if: United States; TT RS 8J MY2012 or MY2013, VIN on the list of 30 vehicles in TSB 2028811/3 and a front squeal at low speed; check wear before applying.

Which engine has the fewest documented faults?

Documented faults and recalls by engine for the Audi TT (8J)
EngineDocumented faults
1.8 / 2.0 TFSIPetrol43 with conditions
2.0 TDIDiesel43 with conditions
TTS (2.0 TFSI)Petrol43 with conditions
TT RS (2.5 TFSI)PetrolFewest documented33 with conditions

According to the data we have, the engine with the fewest documented faults is the TT RS (2.5 TFSI) (Petrol).

By fuel type, the one with the fewest documented faults is: Diesel.

We only count the sourced sheets we have. An engine with fewer is not guaranteed to be more reliable: it may have been studied less or sold in smaller numbers.

Official recalls: ask before you pay

We have no official recalls on record for this model. Our list is not complete: ask anyway, with the chassis number.

  1. Ask the seller for the chassis number (VIN): it has 17 characters, appears in the car's documents and can usually also be seen at the base of the windscreen.
  2. Ask an official Audi dealer, or the brand's official website if it lets you check by chassis number, whether each recall has been done or is still outstanding for that VIN.
  3. Manufacturer recalls are normally carried out free of charge by the official service network. If one is outstanding, ask for it to be done before you close the sale.

On the test drive: what to look and listen for

Taken from each sheet's symptoms and checks. You can tick off what you have already looked at: it is saved only in this browser.

0 of 6 checked

Injection / high-pressure pump

  • Look out for: Power loss or hesitation at full load, fuel pressure codes, high-pressure pump noise; fuel smell in the oil and a rising level if the pump leaks; misfires.

    Ask them to check: Check the high-pressure pump follower at every service, smell the oil and watch its level, and read fuel pressure with a diagnostic tool.

Cooling / EGR

  • Look out for: Coolant level drops with no visible leak, white smoke with a sweet smell, rising temperature or engine light. In severe cases the engine hydrolocks.

    Ask them to check: Cooling system pressure test and check for coolant in the intake or manifold.

DSG gearbox

  • Look out for: Jerking or shudder when pulling away and at low speed, harsh shifts, gearbox warning or limp mode; codes P17BF, P189C, P0841, P0871 or P0717.

    Ask them to check: Read codes with ODIS or VCDS, check the oil change history, inspect the pan for rust or leaks and the clutch adaptation values. Replacing the mechatronic control board is often enough.

Climate control

  • Look out for: The air does not cool or cools intermittently (for example only at motorway speed), and sometimes the compressor rattles with the A/C on. Codes 01232 (N280 valve), P2612 or 00898.

    Ask them to check: Read the codes and N280 control current with VCDS or ODIS, measure its resistance (about 10 ohms) and check the connector and wiring before replacing parts. If the valve or compressor is replaced, the whole circuit must be flushed.

Transmission

  • Look out for: All-wheel-drive warning or a pump error in diagnostics, the car behaves like front-wheel drive (wheelspin in the wet or on gravel) and sometimes no cluster warning even with stored codes.

    Ask them to check: Read the all-wheel-drive module with VCDS, OBDeleven or ODIS (ODIS shows the pump current) and check in the history when the oil was changed and whether the filter was replaced and the strainer cleaned. After servicing, an adaptation with diagnostic equipment is recommended on generations 4 and 5.

Brakes / noise

  • Look out for: Squeal under slow braking, even with sufficient friction material.

    Ask them to check: Confirm one of the bulletin’s 30 VINs; replace front pads with 8J698151L.

OBD codes worth looking for

If they let you read the fault memory with an OBD reader, these are the codes mentioned in this model's sheets:

P17BFP189CP0841P0871P071701232P261200898

Sources

Every fact on this page comes from these Testigo sheets and their original sources. Sources are not checked in real time.

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