B5A4 Central Locking FAQ – 10-04-2007, 12:33 AM. For everyone with a B5 A4 (also applies to A3 & A6) there are two main variants of the central locking pump. The older single vacuum/pressure outlet 4AO pumps, and the later twin outlet 8LO pumps. The suffix letter on the end of the part number indicates pump revision and car model. EarlyA3, A4, Skoda etc. PIN of this vehicle is 0471. Take the 2 pairs of highlighted numbers above (71 04 ) and swap the pairs around. Note the address label at the left hand side ( 000001F0 ) To arrive at the screen above you will need to scroll to the bottem of the screen dump. Late Audi A3, A4 A6 etc A4(B7 Platform) Discussion - Immobilizer Problems? - I went to start the car yesterday morning and it died almost immediately after starting up. I tried a couple more times with the same result - runs for a second and then dies. I know this to be a symptom of the immobilizer not recognizing the key, as one of my Todaywe're going to show you how to remove the cluster from a 2000 Audi A4 B5.Step 1: Lower steering wheel and pull out all the way. Lock in place.Step 2: P
Pressany button on remote control. Lock and unlock vehicle within 30 seconds using driver-side lock with the door closed. Open the door and insert the key in the ignition turning it to the On position. Remove the key from the ignition. Press any button on remote control. Now check function of synchronized remote control.
SOURCE audi a4 1995 central locking problem. Hi there. I had exactly the same problem and there are 2 ways of solving it. The first is to pay your Audi Service Centre £350-£550 to replace it for you and the second way is to do it yourself which will cost well under £100 (depending on ebay). Firstly check the Central Locking Pump to make mlfXowi.
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  • audi a4 b5 immobilizer reset