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Mercedes 420 SEL Accelerator stuck and he threw it into park

W

WD Chase

Junior Member
My son driving our old 1997 Mercedes 450 SEL -( automatic) experienced the accelerator sticking (he says) down at approx. 40 mph - he said he stepped on the brake hard but it kept revving.. he then panicked and threw the car into park. !
He drove it home but it would go 30 or so max. - What did he do to it?
We haven't had it looked at yet.

Transmission?
 
Yes. Could have knocked the parking pall off, or just trashed the clutches. Time for a rebuild and a new throttle cable and maybe a quick pointer to the neutral position.
 
😵 His best idea was putting in park? What happened when he did that?

I thought modern transmissions don't allow themselves to be destroyed like that?
 
jlee said:
Why? We have a very knowledgeable garage subforum.
Click to expand...

Absolutely (I love the build threads (both of cars and the physical garages)).
But it's not really the front gate of the place, if that makes any sense.

Plus, skeptical is my go-to reaction to most new things these days. 🙂
 
While moving steering will be tighter but manageable. Brakes will have one or two applications before losing assist. 40mph isn't a panic speed anyway...very manageable. Well...no speed should be a panic if you know what you're doing.
 
This doesn't help OPs case but seriously, no one should be allowed to operate a car unless you know what all the gears do.

Just because you know what 3 out of the 6 gear selections do on an automatic transmission, that should not give you enough confidence to jump behind the wheel and drive.

I don't know how people are comfortable doing this.
 
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