Mainly when i'm doing round town driving, low speeds etc I get blue smoke from my Audi A4 TDi 2.5. But when its motorways or good country roads etc it doesnt smoke even when i put my foot down. It is due its service 110.000m could this help, it doesnt lack any performance at all. could it be the Turbo... what tests can I do???
2006-08-16 08:48:47 · 25 answers · asked by jamesoliver 3 in Cars & Transportation ➔ Maintenance & Repairs
Blue smoke is usually a sign that you're burning oil. Just take it to the shop and tell them the symptom - and maybe ask if it's from burning oil so they think you know a little something about cars.
2006-08-16 08:53:01 · answer #1 · answered by sandand_surf 6 · 1⤊ 0⤋
The VAG 2.5 tdi would not be as strong an engine as the 1.9 tdi but nevertheless it shouldnt smoke too much. Can you see the smoke behind you when driving around the town? Any turbo diesel engine will smoke a little. Try keeping an eye on the oil level after your next oil change. Check the level again after 1000 miles and see how much the engine has used over this distance. If its around .5ltrs, then i would say that that is average enough for a car that has covered that mileage. If it is more, then i would suspect wear in the rings/cylinder bores.All the usual checks then come into play. Trade the car in and let some one else have the trouble.
2006-08-16 12:27:36 · answer #2 · answered by jonjosar 3 · 0⤊ 0⤋
Engine is burning oil. Blue smoke indicates oil, black smoke indicates too much fuel being burnt (petrol/diesel) Would suspect valve guides/seals firstly, could be piston rings/cylinder bores worn. If somehow the turbo is able to draw oil from somewhere it might be possible it can blast it into the combustion chambers too along with the air it's forcing. Service will only help if they look for, and can find, something specifically amiss that's causing your problem. (like removing rocker cover and finding valve seals have perished/disintegrated) Going to have to get someone who knows Audi or at least turbo diesel engines to have a look.
2006-08-16 09:22:43 · answer #3 · answered by Dick s 5 · 0⤊ 0⤋
Sounds like your car is burning oil. The most common symptom is probably worn valve seals. I've got a '78 Malibu with 160K that used to burn oil, and one thing I have done is switched from the standard stock oil to Valvoline MaxLife. Its a little pricier than a standard quart, but it does wonders. Since running it in my V8, my car runs a little cooler and seems to stop burning oil. I'm also maybe getting a mile or two more per gallon out of her as well. One thing the oil contains is a seal conditioner that will plump shrunken and worn seals back up to where they're supposed to be.
Like I said a little earlier, its not as cheap as the standard stock motor oil, but its a cheaper alternative to having the heads torn off, especially on a car with that many miles.
2006-08-16 09:23:50 · answer #4 · answered by graffiti62 3 · 0⤊ 0⤋
Its simply burning oil if it was your turbo it would smoke all the time especially when you accelerate.You need to determine how much .How often do you top up with oil it is critical that you don't over fill it should be mid way between min and max marks on dip stick.I own an Audi and don't get all the problems that others seem to refer to Regards Mick.
2006-08-16 11:33:33 · answer #5 · answered by mick 6 · 0⤊ 0⤋
You could be starting to burn some oil. Mention this to the mechanic and they can advise you. It comes with age. I would recommend starting to use at least a partially synthetic oil. After 100,000 miles, I think everyone should start moving in that direction. A ring job, which would solve the whole issue is expensive. Talk to your mechanic.
2006-08-16 08:57:13 · answer #6 · answered by Carlton73 5 · 0⤊ 0⤋
Burning oil!
Possible Turbo Seals but i doubt it.
More likely to be valve stem oil seals!
How much oil is it using?
Could also be piston rings worn but very unlikely!
A compression test will tell you if the rings are worn!
Get it serviced then have a look at it, if you have to get stem oil seals done it's not too expensive, but if it's passing emissions test i would leave it, you keep topping up oil!
Good luck
2006-08-16 08:57:04 · answer #7 · answered by fatbadge 3 · 1⤊ 0⤋
Sounds like the turbo oil seals to me. You can check for play in the turbo shaft by taking the inlet hose off the front of it and wobble it (make sure the engine's cold first), more than about 1mm side to side movement or any in and out and chances are it's knackered.
2006-08-16 08:56:52 · answer #8 · answered by voodoo_melon 2 · 0⤊ 0⤋
Rings may be going bad. When the turbo goes you will have alot more than blue smoke. How about big white smoke? RESTORE helped me.
2006-08-16 09:10:32 · answer #9 · answered by carstar1981 1 · 0⤊ 0⤋
Blue smoke means its burning oil.
2006-08-16 08:54:18 · answer #10 · answered by Anonymous · 0⤊ 0⤋