![]() Replace any drive belt exhibiting any of these conditions. NOTE: Conditions requiring drive belt replacement are excessive wear, rib chunk-out, severe glazing, frayed cords or other conditions. If the drive belt has chunks missing from the ribs, the drive belt should be replaced. NOTE: Minor cracks in the V-grooved portion of the serpentine drive belt (8620) are considered normal and acceptable. WARNING: IF EQUIPPED, DO NOT ALLOW DRIVE BELT TENSIONER (6B209) TO SNAP BACK AS DAMAGE TO DRIVE BELT TENSIONER OR PERSONAL INJURY COULD RESULT. Schematics on them are, a x100 fold HORROR, and i'm good at them. Not sure me, id never own any German car. ![]() Short answer go to dealers parts counter tell VIN and BINGO.Īnd parts for cars say in Europe are not the sameĢx normal or more (to suck more fuel) and or MAP too. Hi this is showing fuel trim bank 1 malfunction, this could be caused by the following things, intake leak, AIR system, fuel pressure/pump, injector/s EVAP canister purge valve, or HO2S ( air fuel mix incorrect) if it starts and runs fine, i do not think it will be fuel pump, or the injectors as this would make it run rough or even not start at all, if it was an intake leak, you would be suffering from high rev's when you start the car and would take a long time for the rev's to come down, so really, that just leaves the HO2S (sensor/s) these are located one on the exhaust manifold ( from engine follow exhaust manifold you will come to a things sticking out with some wires on) this is HO2S sensor bank 1, or if you look under the car on the exhaust, just past the catalytic converter you will see the same thing, this is HO2S sensor bank 2, it may be either of these, but i possibly would go for the first one, could be, if you have an air leak on it, the EVAP can be found under the hood/bonnet, at the front on the right hand side as you look into the engine/motor bay just in front of the screen was bottle.hope this helps SOURCE: I have an engine fault code of p0170 on a mercedes
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