Last post on Dec 29, 2011 at 10:56 AM
You are in the Audi A4
What is this discussion about?
Audi A4, Convertible, Sedan, Wagon
#85 of 87 Re: Ignitions coils and catalytic converters [dat2011]
Nov 09, 2011 (11:29 am)
I have some very useful information on this subject ( ignition coils and cat convertors). These two problems seem to go hand in hand, and maybe you service departments are not explaining the reasons why. First I will assume that the check engine light is not only on, but also blinking.
When an ignition coil fails, and causes a misfire in a cylinder, the fuel is still being injected into that cylinder. That unburned fuel will enter into the exhaust system and will pass through to the catalytic convertor, which is typically MUCH hotter than the rest of the exhaust, by design. This introduction of raw fuel into the catalytic converter causes the destruction of the cat. So if you have had a misfire in the past, it is safe to say that you will be replacing a catalytic convertor in the future.
Back to the blinking check engine light... This "blinking" light is warning you that the catalytic convertor is in danger of "meltdown" ( usually a sure indicator of a cylinder misfire). This situation is not just for Audi's, however. If any of your cars or trucks... American, German, Asian etc. display a "flashing" check engine light, the same problem(s) probably exist. You will probably experience the same after affects as well.
The best thing to do in this scenario, is to get the vehicle off the road and into a service shop ASAP, preferably without the engine running ( to save your catalytic convertor).
#86 of 87 Re: ignition coils- Audi will pay [mik63]
Dec 29, 2011 (10:46 am)
I had very similar problems with my Audi (2001 A4) in June and since I am the second owner, I did not get the recall on the coils... I had to get my car towed to my regular body shop and before I knew what the repair was for, they coils were replaced. I called Audi because my mechanic said that my coils were under recall a few years back. I had my repairs done (at my mechanic -not Audi) and then just faxed in a reciept to Audi Customer Care and (although it too several months), I did get a check for the parts and labor... Great Customer Service on Audis part.
#87 of 87 Audi A4 Heads up Display
Dec 29, 2011 (10:56 am)
So I have owned my Audi for 2 years now and I love it... It has cost me here and there but living in Hawaii, with a car thats 10+ years old, Its going to cost $$...
My heads up display is not working.. Its not completely out because I see traces of information byt so blurred and distorted that I cannot make out that its saying... My car randomly beeps and Im sure with a proper heads up display I would know what its saying... I have been made aware (during an oil change) that my wiper fluid holder is cracked.... So I assume its telling me I need fluid??? I have googled a new display and it requires minor electrical abilities (I have NONE).
So, my first question is: Has anyone had this issue with their heads up display? Is there and easy fix?
Second question: Just yesterday, my car was having a bit of a trying time starting... slight hesitation... I feared the worst! (Had a new alternator put in it in April 2011) Once started, car ran great, no notifications of any problem (but with a non-working head up display ^ who really knows) Got to my destination... and my car sat for a few hours... went out to head on an erron and it started fine (slight hesitation noted) and drove two blocks to the mail box on my way out.. went to start it again and I got the "I have a bad cold" failure. It clicked and attempted to start but nothing...
So: Could this be my battery? OR WORSE???? I had it jumped and it started right up and was great.... got it back to the house, let it run for a bit and then it sat for several hours again.... went out before bed to give it a pep talk and nothing..... it tried but just would not perform.... HELP!!!