Removing and installing exhaust gas recirculation control motor V338 with exhaust gas recirculation potentiometer G212 — AUDI

🧭 Before you start

Remove the engine cover and noise insulation, release the air hose and loosen the air pipe at the throttle valve module. Unbolt J338, unplug V338 and remove its bolts. Fit the new motor with a new O-ring, refit J338, air pipe, air hose and noise insulation, then complete the adaption run.

Fits: Audi A3 (8P, 2003–2012)

• Renewed: o-ring

Don't miss

• Renew the O-ring on the EGR control motor.
• Loosen the air pipe at J338 but leave it in position; no need to remove it fully.
• After renewal, run the engine one minute, then ignition off for five minutes for adaption.
• Refit the air hose plug-in connector until it locks; a loose hose gives boost leaks.
• Read the fault memory afterwards and clear old EGR faults, as general practice.

Written for this job from the workshop steps below · TorqFix editorial.

🔧 Engine codes this applies to

📐 48 workshop diagrams for CBAA

Real factory drawings for this job — timing marks, bolt locations and routing. Locked in the free view.

📋 Procedure

1. Remove engine cover panel (arrows).
2. Remove noise insulation (1)50.
3. Release hose clip (2), lift retaining clip (1) and remove air hose.
4. Remove bolts (1) and (3).
5. Loosen hose clip (5) at throttle valve module J338, detach air pipe (2), but leave in position. [Note: Disregard (item 4).]

6. Unplug electrical connector (3). [Note: Disregard (items 1, 2, 4) and (arrow).]
7. Remove bolts (arrows) and detach throttle valve module J338.
8. Unplug electrical connector (1) at exhaust gas recirculation control motor V338.
9. Remove bolts (2) and (3) and detach exhaust gas recirculation control motor V338. [Note: Disregard (item 4).] [Note: Renew O-ring.]
10. Install throttle valve module J33823.
11. Install air pipe .
12. Install air hose with plug-in connector .
13. Install noise insulation 50.
14. Adaption must be performed after renewing exhaust gas recirculation control motor V338: allow engine to run for 1 minute, switch off engine and switch off ignition for 5 minutes.

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