I have a ECU question

Asked by Nov 06, 2018 at 01:25 AM about the 2003 Audi A4 3.0 Cabriolet FWD

Question type: Maintenance & Repair

I have a A4 2003 with a 3.0  cabrlet. The scaner
said bad ECU so I got one of of a A4 2003 with the
1.8 t . Would are the ECU the same and would it

2 Answers


They may or may not be the same part, but the programming will certainly not be the same for the 2 different sized engines. Getting it reprogrammed may be expensive and it may not even be possible. Try tp locate the proper part for your vehicle.

1 people found this helpful.

Just notice you answered me back Bob. I found the same car as mine only difference was the color . Mine is gold the parts car is blue. But anyway I replaced the ECU then the immobilizer light came on and car wouldn't start so I changed out the whole streering calum so the key and immobilizer box would match the ECU . I have a scarnner made for Audi's and V.W. my question is to I need to change out Vin numbers now ? So it would match the car also? Or am I makeing it worser cuz the lights comes on the dash but still won't start. I really don't know what I'm doing. Lol and I have no extra cash to take it to a shop.

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