Weird accelerator pedal development
Thread Starter
Senior Member
Joined: Mar 2018
Posts: 356
Likes: 76
From: Elizabethtown Kentucky
2019 E 300 4matic 2013 SLK 250
Weird accelerator pedal development
I decided to keep my 08 E320 BlueTEC for at least a while after massive repairs. A new development with the accelerator pedal has me and my mechanic puzzled. Driving around town everything’s fine but it I get on the highway and drive 70-80 miles when I come off the interstate the accelerator pedal feels stiff and takes more pressure to push down. It’s not limp home mode and the intake manifolds were replaced in July. It’s not a big deal but just wondering if anyone else has noticed this.
Thanks!
Thanks!
MBWorld Fanatic!
Joined: Jan 2016
Posts: 2,748
Likes: 880
From: In the Shadow of the Tetons
2013 ML350 Bluetec
Speaking for my '05, and I doubt yours is very much different, the accelerator pedal is just a spring loaded lever with position sensors built in. There's really nothing to go wrong in there. Are you sure something isn't getting wedged into the hinged area at the bottom of the pedal? It's pretty easy to take it out and clean it up. There's zero connection (other than electric wires) from the plug at the top of the pedal to the rest of the car.
A decent reader with graphing ability can tell you if your sensors are getting jjitteryyy but my money is on crud building up on the pedal's pivot point.
A decent reader with graphing ability can tell you if your sensors are getting jjitteryyy but my money is on crud building up on the pedal's pivot point.
