Do you drive an Audi A4 B8 or Q5 with the 2.0 TFSI and hear a knocking noise on a cold start? SMotors in Kraków is a workshop that knows Audi inside out – from the CAEB engine code to the DL501 mechatronic unit. We work with the official SFD unlock and carry out S tronic adaptations, Haldex servicing, MMI 3G repairs and complete timing chain jobs. We look after Audi owners from all over Małopolska: Kraków, Wieliczka, Skawina and Niepołomice.

We service every Audi generation – from the popular A4 and Q5 to the sporty RS and S line models

A3 8V/8Y · A4 B8/B9 · Q5 80A/8R · Q3 8U/F3 · A6 C7/C8 · Q7 4L/4M · A1 8X/GB · A5 8T/F5

Audi faults we know inside out – the most common problems with TFSI and TDI engines, S tronic gearboxes and MMI electronics

2.0 TFSI EA888 (CAEB, CDNC) oil consumption – repair in Kraków

A factory defect in EA888 Gen1/2 engines from 2008–2013 (codes CAEB, CDNC, CCZB): the piston rings are too thin, they get clogged with carbon and let oil into the cylinders. Consumption typically exceeds 1 litre per 1,000 km. The result is a blocked catalytic converter, a damaged turbocharger and the risk of the engine seizing. The only lasting fix is fitting Gen3 pistons with thicker rings – we carry out a complete short-block rebuild.

Audi 2.0 TFSI EA888 B8 timing chain – rattle on a cold start

The plastic timing chain tensioner in the A4 B8, A5 8T and Q5 8R with the 2.0 TFSI engine (2008–2012) loses tension too early on cold starts. The tell-tale signs are a metallic rattle right after starting and fault codes P0011, P0016 and P0341. Left alone, the chain can jump and bend the valves – we replace the complete kit, including tensioners and guides.

S tronic DL501 (0B5) mechatronic unit failure – Audi A4, A5, A6, Q5

The seven-speed S tronic DL501 dual-clutch gearbox (fitted to the A4 B8/B9, A5, A6 C7 and Q5) needs regular oil changes and adaptations. A failing mechatronic unit shows up as harsh shifts between 1st and 2nd or 3rd and 4th gear, limp mode, and loss of the odd or even gears. Fault codes: P17D8, P174B. We carry out computer diagnostics, gearbox control unit (TCU) adaptation and a mechatronic unit rebuild – without replacing the whole gearbox.

Intake swirl flaps (P2015) – Audi 2.0 TDI and 3.0 TDI

The plastic swirl flaps in the intake manifold of 2.0 TDI and 3.0 TDI engines (A4 B8, A6, Q5, Q7) work loose or seize, which turns on the check engine light with codes P2015 and P2006. In extreme cases, broken flaps end up in the combustion chamber. We repair the flap mechanism or replace the manifold. We don't remove the flaps or disable them in the ECU – that would mean tampering with the emission control system.

MMI 3G repair – Audi A4 B8, A6 C7, Q5 – black screen, freezing

The MMI 3G infotainment system (2008–2015: A4 B8, A5, A6 C7, Q5 8R) has typical faults: a black screen, a frozen interface, lost Bluetooth, an unresponsive control knob and satnav errors. The cause is a failed hard drive, an overheating processor or connectors coming loose on the main board. We diagnose and repair the MMI unit – instead of rushing to replace the whole module for several thousand złoty.

Why Audi owners in Kraków choose an independent workshop over the dealer

  • The same genuine VAG parts as the dealer, plus proven OEM alternatives
  • Full computer diagnostics with the official SFD unlock – we read data a standard OBD scanner can't see