Jd1959

Ok Trevor thanks for the advice.

Hi , I have a 2004 A4 Cabriolet and I was wanting to add a steering wheel with stalk controls on for radio etc. So does anyone know if the wiring is already insitu and all I need to do is add a steering wheel from say a 2007 model that has the controls already on it as I also want to add bluetooth for phone and streaming etc. whats the best way to do this ? do I get an after market radio and fascia adaptor or find a better Audi radio that is bluetooth ready ?

Hi Guys , update! at the begining of last week I decided to let the garage take the head off and investigate from there, and Gareth was right the cylinder head gasket was blown in 2 places between the ports. So the cylinder head has been sent to be tested and skimmed and has arrived back at the garage today where it will be refitted with new gaskets etc. I might get it back tomorrow or Friday and after trying it, if all is ok I will get the gearbox fixed or replaced as the syncromesh has gone in second gear. So fingers crossed. Thanks Gareth, Dan and Trevor for all of your input and advice .

Hi Trevor the garage has carried out a leakage test I believe, they are a well equiped service centre. I suppose if the gasket was replace and cylinder head reconditioned then surely the fault must be solved as there appears nothing else that can be causing it. The pinking has got gradually worse everytime a faulty part has been replaced . When I first got the car the heater was not working very well somI had the heater matrix replaced and it worked fine. I was told by the person who i bought the care from that the engine management light comes on and his garage told him it was the secondary air intake sensor, so I had it checked from the fault codes but it turned out to be the secondary air pump and a leaking pipe. Then the pinking started . but the EM light came on again and it was the injection thermostat and another secondary air part , pinking got worse again to the point that it pinks from a cold engine whereas it used to be from just a hot engine.. Any body want to buty an A4 ? lol

Hi Gareth . Cylinder 1 = 110 psi Cylinder 2 = 90 psi Cylinder 3 = 120psi and Cylinder 4 = 150psi The garage have done a test to see if it is the gasket but they believe it is not the gasket but the Valves John

I will let you know I have the details on the job sheet at home and the compression results are on the sheet .

Update ! After spending about £800 on mainly labour and replacing the 2 knock sensors, the injection thermostat, secondary airflow pump and sensor and pipes, the Pinking is still there but worse. The parts that were replaced were shown as fault codes so no more engine management light . The pinking starts evening at cold temperature only when driving , does not happen when revving . The garage check the compression and it is low ish on 2 ports but surely this cant be causing the pinking . This is my first Audi and so far as much as I like the Audi when it was working, this fault is kind of putting me off getting another and I may need to sell it.

Ok so far , The car i still at the garage , they said if the timing belt was off by one tooth then the pinking would have been there all of the time ( which it hasnt) . They have put a computer on it to check the mixture etc, they say there are 2 knock sensors not working which can cause the problem and the injection thermostat shows up as a fault . The garage is going to replace these one at at time to see if the fault is resolved to save me money. garage will ring me tomorrow to update.

That's a good point Dan the timing belt may be out if there is one. I will have a look at the fuel filter and get some injector cleaner. I have already tried using a higher grade fuel but that did not work. I'll let you know how it goes. thank you for the advice

Hi, I am new to this site and Ive have my A4 cabriolet since March however i have a problem with what I would call Pinking ! . In the old days I would have just retarded the ignition timing/distributor but now all of these issues are usually controlled by the ECU as far a im aware. The pinking is happening when going up through the gearbox or when accelerating at higher speeds. if i were to dip the clutch while driving the pinking would stop. No EM light on dash . Any ideas what is causing this problem as it is getting really annoying. This is my first Audi , I love the car but im very close to getting rid if I cant get this problem solved . I have had some work already carried out on the secondary air pump and pipes etc.