Audi A4 HELL - Please help

atrixblue.-MFR-.

vax2002 wrote: »

The 1.8 coil pack is a 3-5000 mile thing and plagues all VAG 1.8 turbo engines.
Fitting a Dump Valve was not the best idea as the Turbo comes to a sudden halt, if they were anything other than a gimmick they would be fitted from new.
This could also be effecting the emissions and be throwing the light of doom.
A independent VW garage will advise the oil pump be replaced at 50,000, so it has done well to get to 70,000 .

absolute rubbish,

BOV's ARE fitted to turbo vehicles! they do not stop the turbo to a halt. they release pressure and only that, the only difference to a standard bov and aftermarket is the difference between standard recurculating the pressure and the aftermarket being atmospheric releasing the pressure into the air.

http://en.wikipedia.org/wiki/Blowoff_valve

stop talking to your pals down the PUB.

and has nothing to do with oil pressure.

one thing i can see coming here OP is that you filled up a VAG when warm with oil. when the oil is warm and been curculating theres little oil in the sump becuase its being sent to mechanical parts in the engine. they will hit you with its been overfilled by you, and that you caused the problem overfilling is just as damageing as letting it run out of oil. youve probably got 4 litres more in there than you should have and probably a total of about 7.5 litres in that engine when there should be just over 4.5 litres.

dont fill a car up with oil when warm and dont do it on uneven ground either.

this could have been something simple as a oil pressure switch on the block being faulty, or possibly the wiring that runs to the coil pack is in the same harness as the oil pressure warning light switch and has melted along with your coil pack wiring and was overseen when they repaired it.

datostar

hewhoisnotintheknow wrote: »

just trying to work out a way to blame this on a french car

Possibly it was parked near one at some point?

forgotmyname

I think the issue could be you overfilled the oil, They could use that as an excuse you damaged the vehicle.

You didnt do what any normal person would do. Check the oil and find its at the correct level you dont add more. I ghues most would say oh look a pretty red light and keep driving until it exploded.

Could it be something as simple as a pressure switch?

jbna4

Right let me explain a bit more, when I checked the oil it was empty, not at normal level comp empty. The car was then left for hours while I went fir oil so no it was not warm and yes it was on flat ground .

Lum

Vent to atmosphere dump valves are a problem on modern turbo cars. As Atrix states modern cars recirculate the air back into the system for another go around, whereas aftermarket dump valves just dump it into the engine bay with a big psshhht noise that makes you sound like a bus using it's air brakes.

Problem is modern turbo cars keep track of how much air is in the system and use this information keep the fuel mixture correct. If you throw all that air out then the car will end up running lean and this can do damage to the engine. To avoid this you'd need to reconfigure the ECU to know how to deal with this.

In a worse case scenario you'd be getting detonation which could destroy the piston rings which would allow oil into the cylinders where it will be burned up along with your petrol.

This probably hasn't happened, but it's a valid possibility which they are now likely to use against you.

mildred1978

Hope you told your insurers about the mod, else that's another expensive piece of paper that's actually not worth anything.

atrixblue.-MFR-.

jbna4 wrote: »

Right let me explain a bit more, when I checked the oil it was empty, not at normal level comp empty. The car was then left for hours while I went fir oil so no it was not warm and yes it was on flat ground .

so you broke down, got out checked oil, was empty, (but yet the car was at optimum temp while you checked the dipstick and my above post applies to the oil level), you went away to find oil, came back and topped it up did you recheck the oil level before you topped it up or did you go right ahead and fill it up based on you earlier WARM check?

we need to establish these events as this will determin your rights!, if you take it to a garage and they find excess oil and you admitted to the garage you topped it up, they will push all blame on you and say you caused the damage.

if the oil was checked when warm and you rechecked it when cold and it was still empty we can help you and give more accurate information.

atrixblue.-MFR-.

Lum wrote: »

Vent to atmosphere dump valves are a problem on modern turbo cars. As Atrix states modern cars recirculate the air back into the system for another go around, whereas aftermarket dump valves just dump it into the engine bay with a big psshhht noise that makes you sound like a bus using it's air brakes.

Problem is modern turbo cars keep track of how much air is in the system and use this information keep the fuel mixture correct. If you throw all that air out then the car will end up running lean and this can do damage to the engine. To avoid this you'd need to reconfigure the ECU to know how to deal with this.

In a worse case scenario you'd be getting detonation which could destroy the piston rings which would allow oil into the cylinders where it will be burned up along with your petrol.

This probably hasn't happened, but it's a valid possibility which they are now likely to use against you.

fitted correctly, and spaced away from the MAF, there should be no problem in fitting a BOV, providing the original is blanked off and not still connected, oh the problems if thats the case!!.

like you say, too close to the MAF=wrong air mix=running lean=borewashing=damage rings=damaged bores=damaged crank bearings= petrol in oil= new engine.

jbna4

YES, i checked it again!!!! I have recieved feedback from citizens advice who have passed this on to Trading Standards and have given me advice how to contact the credit company too.....

atrixblue.-MFR-.

mildred1978 wrote: »

Hope you told your insurers about the mod, else that's another expensive piece of paper that's actually not worth anything.

it doesnt affect performance. its just and engine bay dress up that goes tchshhh when changing gear.

its a mod but i doubt very much would render his policy void.