hey im fairly new to this site thought you guys may help me...i just bought an AUDI A8 1998 with 191km from an auction and im abit worryed about the transmission i think its doing some stalling and im unsure whats wrong with it,i know it may cost up to 20$k to fix it, i think my transmission is stalling abit when i press on the pedal or its doin sometin like switching gears randomly.. i bought my car for 10$k Canadian and i already put into it atleast 1.5$k with new brakes i had to replace my water pump and timing belt aswell.. would i be better off selling the car before there might occur any new problems.. my machanic said i might need to replace the suspension aswell which would cost me probly another 1k$.. but otherwise its pretty good.

 

Is it constantly stalling, or just at certain speeds? Why does the suspension need to be replaced? Get a second oppinion, sometimes shops like to take advantage. A new tranny shouldn't cost 20G's.

 

Does anyone have any other feedback on stalling issues of a A 8, 4.2 Quattro???

 

You dug up a 5 year old thread to ask a question you could have started a thread for? sigh......Cars don't stall for nothing, did you pull the fault codes yet, or do you want us to pull a diagnosis from our magic crystal ball?

 

Oddly enough and I have no Fault codes to report, and nothing stored, what does anyone recommend???

 

Start with the basics, check for vacuum leaks, broken hoses etc. I would also take off the intake line at the throttle body and use some brake cleaner to clean out the butterfly valve. Carbon build up on the throttle body and or intake valves can also cause bogging down/stalling without setting any fault codes. You can try seafoaming the intake. To do that buy a can of seafoam from any autoparts store then locate a maifold vacuum line and slowly suck in the seafoam until the can is empty. This will make the engine bogg down while doing this and will create a ton of toxic smoke from the exhaust so don't do this in an apartment complex or something. This will also foul up the spark plugs, so buy a new set and replace them after the seafoaming, should run like a champ after all that.

 

Auditech, do you let the car idle during the seafoam treatment, or do you drive it around the block? Also, do you change the oil afterwards? ... on second thought - how about a detailed write-up?

l8r)

 

Correct you let it idle until the can is empty. If it stalls out, restart it and keep going until its gone. Once thats done the car will smoke for a long while, this is when i like to smoke out the neighborhood and floor it down my street.
You don't need to change the oil when cleaning the intake or adding it to the fuel system. When you add it to the crankcase (oil) you only use 1/2 a can and drive it for a quick 20-30 miles then change the oil and filter.
Seafoam is 100% petroleum, so it will eat the bearings in the engine if you leave it in there long enough.