My 1994 audi 100cs quattro wont start anymore. engine is 2.8l v6. a couple weeks ago i noticed it having trouble starting. sometimes it would not start then i could wait 10 minutes then it would start right up one try. it kept doing this every week and now it wont start at all. It still cranks up but it refuse to start.

SOURCE: My Audi 98 2. 8l car is always overheating

Hi Counchcharles
Your service displays have to be reset with the correct electronic equipment....When you chage the engine oil the computer management system will have to be told...thats the job of the scanner....go to a service centre and have them cancel it for you.
The over heating problem is nothing to do with that though.....Check to see if you have any leakage....open the pressure cap only when the engine is cold....best is first thing before start up in the morning....check to see if you need topping up....if you do, it'll mean you have a leakage....Check the entire radiator and hoses where they go from the rad into the engine and ventilation system for stains from the coolant....If you can't find any look at the thermostat....If you remove it, replace with anew unit, do not dis-guard it also check the pressure cap and if needs be replace....Good luck
Best regards Johngee10

SOURCE: 1994 audi 100s transmission problem, cumputer, no reverse AUDI VW

how too check transmission fluid on audi 100s 1994

SOURCE: Will These Spark Plug Wires Work for My Audi?

No. I would go with the cheaper set.

SOURCE: audi 100cs does not crank and does not start

If you have acess to a mutimeter check the batery voltage. Should be around 12.5 volts. also check batery voltage when trying to crank engine. Should drop to 9volts while cranking. If it dose but engine dose not turn over you know power is still going to the starter motor but its just not turning. This could be a bad conection in the starter some where.if voltage dose not drop you know power is not reaching the starter motor. this could be a bad earth to the starter from the baterty somewhere. But also listen for clunking or clicking noices while cranking which would surgest the starter is trying to turn. try this before doing any other diagnostics.hope this helps

SOURCE: 1994 audi 100s transmission problem, cumputer, no reverse AUDI VW

Hi I also have an Audi Auto 2.8 non quottro had a simler problom and it turneed out to be one of the gear relays that are under the stering wheel on a left ****** that is.