The heck...my car stopped accelerating on the freeway
02-04-2013, 11:43 AM
#1
Super Member
Thread Starter
The heck...my car stopped accelerating on the freeway
So I'm on the way into the office. I'm on the on-ramp, and need to hit the gas to accelerate. I punch it actually to get up to speed fast, and the car doesn't respond.
I think, weird...look at my dash, and I have a notification I think was about the owner's manual. Again, I think...weird. I push the accelerator in again, finally noticing, the car is just cruising, power still on, but no acceleration. I pull over, and find the engine is actually still on (as far as I can tell). I turn the car off, power it back on, and everything is fine.
What just happened??
I think, weird...look at my dash, and I have a notification I think was about the owner's manual. Again, I think...weird. I push the accelerator in again, finally noticing, the car is just cruising, power still on, but no acceleration. I pull over, and find the engine is actually still on (as far as I can tell). I turn the car off, power it back on, and everything is fine.
What just happened??
02-04-2013, 11:51 AM
#2
Not sure - but for safety reasons I would have the dealer check it out ASAP.
FWIW, I had a similar experience in my old 2010 E350 - except it wasn't fixed with an engine restart. I had it towed to the dealer and they had to replace the engine control unit (ECU). Took a week because they had to order the part from Germany.
FWIW, I had a similar experience in my old 2010 E350 - except it wasn't fixed with an engine restart. I had it towed to the dealer and they had to replace the engine control unit (ECU). Took a week because they had to order the part from Germany.
02-04-2013, 11:52 AM
#3
Super Member
Thread Starter
Not sure - but for safety reasons I would have the dealer check it out ASAP.
FWIW, I had a similar experience in my old 2010 E350 - except it wasn't fixed with an engine restart. I had it towed to the dealer and they had to replace the engine control unit (ECU). Took a week because they had to order the part from Germany.
FWIW, I had a similar experience in my old 2010 E350 - except it wasn't fixed with an engine restart. I had it towed to the dealer and they had to replace the engine control unit (ECU). Took a week because they had to order the part from Germany.
Thanks for the response.
02-04-2013, 12:22 PM
#4
MBWorld Fanatic!
Sounds like it went into limp home mode and the restart cleared the malfunction. The error code will be stored so go have it checked out.
02-04-2013, 01:40 PM
#5
Super Member
I've experienced the same thing. When I stomp on it, only when the cruise control is engaged though, it does exactly that and gives a dash warning. Keying off and on the car resets it but no malfunctions registered. Doesn't happen every time but has a few times. I just disengage the cruise if I plan on hammering on the accelerator.
