Just been advised i need 6 new injectors at a cost £4049.00 from a main dealer....would like to know if there are any issues known with these injectors similar to the recalls on the smaller engine cars, audi customer service does not acknowledge this problem, although it's on a 06 plate, it's only done 83k just like to know if anyone else has had this problem
A4 3.0tdi quattro injector failure
- Thread starter Richie D
- Start date
TBH it is a reasonably well documented issue and seems to affect cars around 05-06 and some a little later.
It is an issue I believe to do with wear in the injector itself. Later injectors have been redesigned so don't suffer from the problem.
There hasn't been a recall from Audi although I have seen cases where Audi have helped with a partial payment but when this is done at the dealers it is ridiculously expensive.
Do a search on Google something like "3.0 TDI white smoke "
There are many threads on the forum itself.
http://www.audi-sport.net/xf/threads/3-0tdi-misfire-white-smoke.205331/#post-2036026
http://www.audi-sport.net/xf/thread...-cylinder-identification.200242/#post-1982771
http://www.audi-sport.net/xf/thread...-egr-issue-advice-please.221284/#post-2211624
The best thing to do I would say is find a diesel specialist who can remove the injectors and have then cleaned and tested, Some may be good and could be refitted, others may need replacement but don't bother with the dealers. A diesel injection specialist will be able to supply injectors for around £250-£300 each.
http://www.ebay.co.uk/itm/Audi-A6-3...ts=Car+Make:Audi|Model:A4&hash=item4185cc4698
The injectors have to be coded when fitted as they have calibration data on them. Any injector that is removed from the engine should be replaced on the cylinder it came from, and should not be recoded.
The ECU uses the initial calibration data to make sure the injectors are balanced. As they injectors are used the ECU actually allows for a small amount of wear in the injector, If you recode a new injector on a cylinder then this is reset.
Karl.
It is an issue I believe to do with wear in the injector itself. Later injectors have been redesigned so don't suffer from the problem.
There hasn't been a recall from Audi although I have seen cases where Audi have helped with a partial payment but when this is done at the dealers it is ridiculously expensive.
Do a search on Google something like "3.0 TDI white smoke "
There are many threads on the forum itself.
http://www.audi-sport.net/xf/threads/3-0tdi-misfire-white-smoke.205331/#post-2036026
http://www.audi-sport.net/xf/thread...-cylinder-identification.200242/#post-1982771
http://www.audi-sport.net/xf/thread...-egr-issue-advice-please.221284/#post-2211624
The best thing to do I would say is find a diesel specialist who can remove the injectors and have then cleaned and tested, Some may be good and could be refitted, others may need replacement but don't bother with the dealers. A diesel injection specialist will be able to supply injectors for around £250-£300 each.
http://www.ebay.co.uk/itm/Audi-A6-3...ts=Car+Make:Audi|Model:A4&hash=item4185cc4698
The injectors have to be coded when fitted as they have calibration data on them. Any injector that is removed from the engine should be replaced on the cylinder it came from, and should not be recoded.
The ECU uses the initial calibration data to make sure the injectors are balanced. As they injectors are used the ECU actually allows for a small amount of wear in the injector, If you recode a new injector on a cylinder then this is reset.
Karl.
First of all get the injectors tested by a Bosch approved diesel specialist to confirm this is the problem. I wouldn't use a Audi dealer as my local steeler said they will just send them to a specialist for test. The Audi dealers price was circa £3k this was in late December 2013. I paid £1950 at my local Bosch diesel engineers for six new injectors coded & fitted. This was on an 06 plate 90,000 miles. They are a piezo-powered fuel injectors & I was told that Audi no longer use them. There is a different testing procedure with piezo-powered fuel injectors & although established in the early '60s the diesel specialist I used had not come across them before. After they contacted Bosch they were able to test them correctly to Bosch technical specifications which confirmed that they all needed replacing. I did this on an exchange basis as at that time there wasn't any refurbished injectors available.
csm
Registered User
Why do you need all 6 replacing?
Some types of injectors cannot be cleaned. They are sealed and have to be replaced.
I had an issue with 1 of my injectors. I bought a 2nd hand one off ebay, and a local garage fitted it. They didn't recode anything and it runs beautifully now. I have a B7 3.0 tdi and mine failed at 110k miles.
Some types of injectors cannot be cleaned. They are sealed and have to be replaced.
I had an issue with 1 of my injectors. I bought a 2nd hand one off ebay, and a local garage fitted it. They didn't recode anything and it runs beautifully now. I have a B7 3.0 tdi and mine failed at 110k miles.
Because it's best practice and also if a component fails for one cylinder it is also likely to fail for other cylinders in future. Just as I replaced both swirl flap actuator arms as opposed to the one that failed. Also the labour cost is significantly less when all injectors are replaced together as opposed to separately.
My injectors are on the way out slowly too. I get unsettled idle after sitting at idle (warm engine) for a while and small amounts of white smoke begin to appear although sometimes it is OK and doesn't happen.
Best practice goes out the window when you feel you have to buy 6 injectors!
I replaced my single injector 2 years ago and the car is still going strong. If it was a car worth a lot of money I might agree with you, but when changing a set of injectors is half a cars value, I don't agree.
I do agree about the reduced labour costs though, but that doesn't justify doing all 6.
I replaced my single injector 2 years ago and the car is still going strong. If it was a car worth a lot of money I might agree with you, but when changing a set of injectors is half a cars value, I don't agree.
I do agree about the reduced labour costs though, but that doesn't justify doing all 6.
Fair point but I'm sure it isn't half the cars value for a set of injectors. Anyway comes down to personal preference at the end of the day, sounds as though you've managed to save yourself a fair deal. Knowing my luck I'd have one go straight after replacing the other. Also have to bare in mind that once an injector is coded it adjusts itself according to mileage to account for sooting/carbon. So you may well see fuel/power benefits by replacing them all at the same time too.
I went for best practice as if 1 has failed then the others can't be to far behind....runs an awful lot smoother and i thought it was quick before but goes like a train now......
