Question about 2007 Mercedes-Benz S-Class

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My 2007 w221 s 320 cdi has gone into limp mode ,no warning lights appeared ,had a diagnostic no faults showing still won't come out of limp mode ,only revs upto 1700 rpm ,what could be the provlem

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 101 Answers

SOURCE: when I start the engine from cold it runs on high revs too long

Hi ..... This sounds as if it's fitted with an automatic choke, as long as the revs drop when it's warm there is nothing to worry about. The indication when these start to go wrong is that the car won't start when cold ................ even then any decent mechanic can fit a normal/manual choke.

Posted on Jan 03, 2009

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SOURCE: ML270CDI (2000 model) loss of power. Rev restricted to 3000 rpm

check for electrical short in the power supply for cpu

Posted on Mar 20, 2009

ghassun
  • 499 Answers

SOURCE: mercedes 220 cdi 2005 wont go over 3000 revs

well the problem mostly is from
MAF sensor
so try to clean it or change it other wise check the fuel filter and fuel pressure regulator

Posted on Aug 10, 2009

  • 432 Answers

SOURCE: C220 CDI Mercedes very heavy power steering at low

Make sure the power steering belt is not loose. Also check the power steering fluid level.If these are ok the pump it self my be weak. But most times its the loose belt.

Posted on Aug 29, 2009

Testimonial: "Brilliant thanks for your help its much appreciated. I will check it out and post the outcome. thanks "

  • 306 Answers

SOURCE: Goes into limp mode computer saysimobiliser fault

The best $100 dollars I ever spent car repairing is a OBDII scanner. This lets you diagnose your own problem. Even if you can't fix it you can direct your mechanic. I am not familiar with code 1630 on your Mercedes.

Posted on Mar 04, 2010

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