please help. powerful push when I shift into R and D
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MERCEDES BENZ CLK 320
please help. powerful push when I shift into R and D
description of the problem:
mercedes benz clk 320 (w209; 2002 y.)
my car has a powerful push when i shift into R and D;also it has the same when shift back into D-N and R-N; however the car drives fluently,no sign of any problem of accelertion, gearbox or any noise; I have decided to change gearbox, gearbox computer and clutch (torque convertor); I changed all of them but there is no result; it has the same problem; I also show my car several handicraftsmen and they say that it's not from any drivetrain (propeller shaft or axle) problem.
please help me if u know anything or have any idea
when shift R and D or back to N the whole car pushes powerfully forward (in D) and back (in R); it also seems that when I shift in D powerful push comes like a second later;
mercedes benz clk 320 (w209; 2002 y.)
my car has a powerful push when i shift into R and D;also it has the same when shift back into D-N and R-N; however the car drives fluently,no sign of any problem of accelertion, gearbox or any noise; I have decided to change gearbox, gearbox computer and clutch (torque convertor); I changed all of them but there is no result; it has the same problem; I also show my car several handicraftsmen and they say that it's not from any drivetrain (propeller shaft or axle) problem.
please help me if u know anything or have any idea
when shift R and D or back to N the whole car pushes powerfully forward (in D) and back (in R); it also seems that when I shift in D powerful push comes like a second later;
Thread Starter
Newbie
Joined: May 2014
Posts: 3
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MERCEDES BENZ CLK 320
RPM is ok, it is on the same level when everything was okay; it's 700-800rpm;
is so strange; what is a real reason; may be the main computer or the torque convertor (because when i changed the torque convertor it was used not new; but I can't believe that it has identical powerful pushes);
i can describe the period up to this situation; it began slight pushes and torque convertor had a noise; i changed the solenoid in the gearbox brain; so the torque convertor was abolished (it wasn't in use); so the car drive fluently without any noise or problems; but pushes got stronger and stronger; i changed gearbox, with it gearbox brain and torque convertor; but powerful pushes wasn't desappeared; we tried another gearbox computers but is was unsuccessful;
may be some cables?! may be any mounts?
problem
when shift R and D or back to N the whole car pushes powerfully forward (in D) and back (in R); it also seems that when I shift in D powerful push comes like a second later;
is so strange; what is a real reason; may be the main computer or the torque convertor (because when i changed the torque convertor it was used not new; but I can't believe that it has identical powerful pushes);
i can describe the period up to this situation; it began slight pushes and torque convertor had a noise; i changed the solenoid in the gearbox brain; so the torque convertor was abolished (it wasn't in use); so the car drive fluently without any noise or problems; but pushes got stronger and stronger; i changed gearbox, with it gearbox brain and torque convertor; but powerful pushes wasn't desappeared; we tried another gearbox computers but is was unsuccessful;
may be some cables?! may be any mounts?
problem
when shift R and D or back to N the whole car pushes powerfully forward (in D) and back (in R); it also seems that when I shift in D powerful push comes like a second later;
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From: Ohio, USA
2003 CLK500
I've noticed this same event. If I push on the brakes harder before shifting it lessens the surge but it is still noticeable. I know I am in need of front brakes soon, so I was hoping that would help.
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Bad engine mounts can cause some vibration, but if you are having to hold very firmly on the brake pedal to keep the car for rolling, then I still would look at the vacuum hoses. The main brake booster hose on our C240 broke and it caused a two-fold problem: One was a loss of brake boost, and then the vacuum leak caused the engine to surge, so on a cold engine, it required a strong foot ont he brake to keep the car from rolling when shifting forn N into D or R.
Thread Starter
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MERCEDES BENZ CLK 320
when i will have a time i have to try to reprogram the main (engine) computer or change with another one, I think that this powerful push comes from electronical problem, may be gearbox brain or engne computer (this one is more presumable);
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2012 C300 4MATIC Sport
I had this problem on my 2003 CLK320 when the transmission conductor plate failed.
I got the P0715 error code and the car was stuck in limp mode.
Whenever I would put it in R or D, I would get that same powerful push you are talking about.
When the conductor plate was changed, everything went away and it's all smooth now.
Could that be it?
The conductor plate part # is 140-270-11-61.
I got the P0715 error code and the car was stuck in limp mode.
Whenever I would put it in R or D, I would get that same powerful push you are talking about.
When the conductor plate was changed, everything went away and it's all smooth now.
Could that be it?
The conductor plate part # is 140-270-11-61.
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The brake booster hose is a vacuum hose. it connects to the throttle body, below the MAF sensor and runs up the firewall and over to the brake booster. The one on my C240 was broken at the check valve, which is just below where it attaches to throttle body. It comes as one piece.
