Hope someone here can advise.
Have a 2004 3.0 cdti, which has ocasionally gone into limp mode when I put my foot down in 3rd/4th gear at about 3000 to 3500 revs, recently been happening about once a week.
It has been making me nervous about overtaking as you start thinking will it won't it.
Happend yesterday so phoned the local dealer to get it booked in which is where it went this morning.
Phone call from dealer at 10am they've had Tech 2 on it and it can't identify the problem from the code logged.
The code is "0102 B3592 - Wide ranging trouble code - car key inop signal high voltage & low voltage"
They advised they havent seen this before and it doesn't identify what the problem is (cost for tech 2 is £41.15 they have done it half price for me).
They proposed having to do a manual check with their resident experienced auto electrician with a 2 hour minimum charge of £164, but advised if it takes longer this price wouldn't rise. Hopefully during this check they would discover the problem and advise if it needed any parts or if it is a software problem they would be able to rectify it.
Aprehensively agreed so its now costing £200 and to diagnose and possibly repair plus parts.
15 mins ago got the call I didn't want - they couldn't find anything on the manual check so took the car for a 10mile test drive with tech 2 plugged in still nothing showing up, their experienced engineer puts these symptoms down to the Mass Air Flow meter (I take it this is the MAF from the air box), a replacement one is £205 BUT this might not be the problem.
At the moment I owe £205 for the testing plus a further £205 should I want them to change the MAF. Don't know what to do.
Had a tuning box on the car and don't know if its a symptom of this (car has gone into limp mode both with box on and off).
Also done the airbox mod and put K&N filter in which I've seen people on here mention they think they could damage the MAF, could this be proving them right. I don't think the dealers looked at the filter yet or they would probably blame that.
Someone help please, they're waiting on my call to instruct them on what to do next. Cheers.