Hi, welcome to Just answer! My name is Ross and i will help with your question
Hi, just to confirm, did you have any misfire counts on VCDS? No fault codes what so ever?
Hi, I had misfire first but was resolved in later checks by changing the loom and replacing one of the injectors
Ok, and there is still a vibration now, is this similar to the misfire ?
well the vibration is no different from before..but not sure if it's because of the misfire anymore as vcds doesn't show anything
actually there is no error in vcds
Ok, unfortunately it does sounds like the exact symptoms the Dual mass flywheel gives. The flywheel can in fact cause a misfire to show in VCDS as the crank sensor will detect the vibrations like a misfire I have had several of these now which fail giving this misfire/vibration without giving any noise.
right..so how come the engine vibrates when it gets hot? and feeling anything when starts from cold
right..so how come the engine (only) vibrates when it gets hot? and (not) feeling anything when starts from cold
That is what often happens as the movement in the centre mass of the flywheel increases as the metal expands.
interesting...can it be that significant?
will it cause any damage if I run it like this for a long time? what would be the possible damages?
It is an unusual symptom to get from a flywheel as its so much like an engine misfire but I have seen these exact symptoms from them many times and as there is no faults via VCDS its almost certainly the flywheel. Running it like this is not recommended, although it may go on for a while yet, eventually it will get worse and start making a knocking noise. They can eventually disintegrate and break apart, obviously this dangerous as parts can be launched through the gearbox casing at high RPM.
is it worth to fix the problem (maybe changing a spring, central bearing etc) or should I change the whole flywheel?
I would recommend an aftermarket flywheel as they last just as long but are cheaper, unfortunatly they are a sealed unit so needs to be replaced as a whole unit.
is there any difference between sachs or LUK? How could I save more money, without losing quality?