2002 MB S420 Hesitation Solved The Ultimate DIY Repair Guide

I'm experiencing hesiation when accelerating which lasts a few seconds. I replaced the fuel filters and the hesitation improved for months, but ... Fuel injectors may become dirty over time and not be able to provide as much fuel to the cylinder as is needed. Dirty fuel injectors may cause the engine to run ... This is normally caused by a dirty butterfly flap in the throttle body which causes a small air leak and confuses the ECU. Its easy to clean.... 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. It could be your crank position sensor is starting to go bad. I would also change out your fuel filter. Sign in to reply. 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, ... When it happens, it basically for a second doesn't respond to the accelerator input and then lunges forward jerking-ly. I have found that when ... Oxygen Sensor for Mercedes-Benz C280 CL500 CL600 E320 E420 E430 ML320 ML430 S420 S500 ... 2002-2005 for Benz C230,2001-2005 for Benz C240,1998-2000 for ... One of the leading causes for hesitation at throttle up is due to excess carbon build up on and around the throttle plate/assembly. This causes ... 2002 Mercedes S430 Review - Troublesome Comfort. Shooting Cars•27K views · 8:40. Go to channel · How to fix hesitation under acceleration ...