nachofly
01-06-2015, 01:26 AM
first af all, cheers to all of you, first timer here, i bought this silver b7 V6 3.0 TDI Quattro, i freaking love the car BUT!, it has 100k miles and im having problems...the expensive ones it appears..
first it the rattling noise and i found this regarding the matter
a. The noises are caused by the drive C chain (right cylinder bank). After switching off the engine the camshaft transmits resetting torques on the chain. As a result the oil is pressed out of the chain tensioner and the tensioner retracts fully.
At the start, the tensioning rail touches the housing (hard plastic on aluminium housing) till the tensioner is again filled with oil.
This causes sporadic rattling noises for 1- 2 sec.
b. This complaint can be mixed up with something else. If the injectors start to leak (injector needle wear), after a stationary period of 10 - 20 minutes this can lead to accumulation and evaporation of fuel in the combustion chamber.
This makes starting the engine more difficult. The fuel accumulation leads to a premature ignition in the combustion chamber and hence to a metallic knocking (hard combustion). Similar to an incorrect chain tensione
a. Optimised tensioning rail (chain tensioner).
4F87N154787
4L27D099846
8E37A258550
4E47N020219
b. Optimised injectors.
4F37N026750
8E47A040360
4EX7N004204
but then i tried to show this code to the audi dealer parts and it didnt show up... do you know where can i found those parts??..
2. Second problem is the tranny....
it seems to be a common problem for the ZF6HP19 transmission, its called the Lurch...
Variant 1 : The Lurch we experience occurs when you bring the car to a halt in a smooth manner by braking very gently and letting the car come very smoothly to rest. Just before the car has come to a complete rest a little lurch like somebody has gently nudged the car occurs. It feels like a gear is being engaged or disengaged just before coming to rest. This can vary in intensity from a very slight nudge to a powerful jump that rocks the car.
Variant 2 : In addition, when you slow very gently to a creeping halt without actually stopping and then gently try to accelerate - there is a slight hesitation when the engine revs higher, then the gearbox engages the drive wheels with a jolt. This varies from a harsh jolt to snatchy.
source Jaguar S-Type ZF Gearbox Lurch fault (http://www.thelurch.com/lurching_zf_transmission.htm)
any ideas, thoughts tips my dear friends???
first it the rattling noise and i found this regarding the matter
a. The noises are caused by the drive C chain (right cylinder bank). After switching off the engine the camshaft transmits resetting torques on the chain. As a result the oil is pressed out of the chain tensioner and the tensioner retracts fully.
At the start, the tensioning rail touches the housing (hard plastic on aluminium housing) till the tensioner is again filled with oil.
This causes sporadic rattling noises for 1- 2 sec.
b. This complaint can be mixed up with something else. If the injectors start to leak (injector needle wear), after a stationary period of 10 - 20 minutes this can lead to accumulation and evaporation of fuel in the combustion chamber.
This makes starting the engine more difficult. The fuel accumulation leads to a premature ignition in the combustion chamber and hence to a metallic knocking (hard combustion). Similar to an incorrect chain tensione
a. Optimised tensioning rail (chain tensioner).
4F87N154787
4L27D099846
8E37A258550
4E47N020219
b. Optimised injectors.
4F37N026750
8E47A040360
4EX7N004204
but then i tried to show this code to the audi dealer parts and it didnt show up... do you know where can i found those parts??..
2. Second problem is the tranny....
it seems to be a common problem for the ZF6HP19 transmission, its called the Lurch...
Variant 1 : The Lurch we experience occurs when you bring the car to a halt in a smooth manner by braking very gently and letting the car come very smoothly to rest. Just before the car has come to a complete rest a little lurch like somebody has gently nudged the car occurs. It feels like a gear is being engaged or disengaged just before coming to rest. This can vary in intensity from a very slight nudge to a powerful jump that rocks the car.
Variant 2 : In addition, when you slow very gently to a creeping halt without actually stopping and then gently try to accelerate - there is a slight hesitation when the engine revs higher, then the gearbox engages the drive wheels with a jolt. This varies from a harsh jolt to snatchy.
source Jaguar S-Type ZF Gearbox Lurch fault (http://www.thelurch.com/lurching_zf_transmission.htm)
any ideas, thoughts tips my dear friends???