Accelerate Flawlessly Troubleshooting 2002 MB S420 Hesitation

Despite the lack of codes or vacuum leaks, the car struggles to move, even after swapping the Mass Air Flow (MAF) sensor, testing the actuator, ... The acceleration problem returned with fault codes relating to voltage on 3 coil packs. I replaced all 8 coil packs (aftermarket) and cleared ... Most hesitation problems are caused by a bad mass air flow sensor. A bad sensor will give you a code that looks like a vacuum leak. The S-Class delivers a smooth and effortless driving experience, with the engines providing ample power for confident acceleration and passing maneuvers. The ... It could be your crank position sensor is starting to go bad. I would also change out your fuel filter. Sign in to reply. 2002 S500 (119k miles) and I'm having a couple of consistent problems ... I have a horrible hesitation/bog/powerloss under acceleration and ... My 1995 E320 with the M104 engine has an occasional hesitation problem upon acceleration. The car has 139,000miles and runs VERY smoothly ... I'm working on a 2002 E320 (210.065) which hesitate once in a while. Symptoms are exactly the same as if the brake pedal was depressed during acceleration ... Any reading over 900 ohms, I would replace it. It won't set a fault code in the engine control unit. The other solution is the Mass Air Flow MAF ... My thoughts on the 2002 Mercedes S430 with the 4.3L V8 and 5 speed automatic transmission! Merch & Blog: https://www.