Audi Repair Questions? Ask a Mechanic for Answers ASAP
Do you have a scanner to tell you what cylinder is missing??
no i dont have one
is there an easy way to tell ie remove a coil pack at a time its only started doing it since i filled tank with 89 ron fuel
yes you can. but if you have a scanner you can see what cylender is missing then switch two packs if it moves its the coil pack if not then its something else
the other thing to check is pull the hose from the intake manifold to the breather on the valve cover. It goes threw a valve on the front that is your PCV or crank case breather valve depending on what they want to call it. This is a known faulty part on these motors.
plug it on both sides and test drive. to see if it gets better.
if not replace said valve
ok its doing my head in also i found out that audi did a recall on the coils that they were replaced foc is this true? how do i find out if mine were done
call the dealer with your vin number. if they have been done they should have record of it. Record should be stored w/ vw factory not the individual dealer so any dealer will work even if work was done else where.
i will try that cause it just seems very underpowered for a turbo car
either fault will make it seam under powered.
would the pcv problem make it loose power
once miss goes away if it still feels slow have someone log the boost numbers on the car with VAG-Com. and they can tell you quickly if there is a leak causing loss of boost
Absolutely it would bleed off almost all boost.
Another check of pcb
whats a vag-com
if its missing at idle try and remove the oil cap. if its extremely hard to remove or wont come off at all guaranteed bad pcv
its a scan tool that will allow you to do everything the dealer can and it plugs into a laptop
most good German shops have a copy and use it for these kinds of problems. its what we use in my shop
ok thanks will try all the solutions see what works its only got 52k on clock
i have seen those pcv's fail at under 10,000
good luck and let me know if you have any more questions.
and please dont forget to accept the answer if this helps you solve your problem cause its the only way i get paid
ok will do thanks again
2008 audi A4 convertible - the soft top does not close.