Why is my Mercedes shaking at idle?

Why is my Mercedes shaking at idle?

If you notice an engine shudder or vibration especially when idling, then this could be a motor mount issue. Another way to confirm this is to put your car into neutral and see if the vibration lessens or stops altogether. If this is the case, then there’s a strong chance that your motor mounts need attention.

What causes a car to idle up and down?

If an engine is not getting enough fuel (this is called “running lean”), due to fuel pressure (regulated by the fuel pump and regulator), restricted fuel injectors, a vacuum leak or really anything that throws off the fuel mixture going in to the engine, this can cause the surge.

Why is my Benz shaking?

The most common reason your steering wheel is shaking is because of the alignment of your tires. When the tires are unbalanced, this can cause the wheels to make your steering wheel vibrate, and sometimes even the whole car. Other issues can cause the wheel to shake as well.

What was the original idle speed of a Volvo S60?

Also note that the original idle speed for these engines was 850 rpm – this was increased by 50 rpm during one of the earlier “throttle software upgrades” – which has the effect of masking this particular symptom, at least for a while.

Can a normal throttle go below idle speed?

A normal throttle will not do this – if you watch your tachometer as you slow down, your engine speed will almost never go significantly below idle speed.

Why does my Volvo S60 stop at 900 rpm?

1. The earliest symptom happens in this circumstance – after driving steadily for a while at highway speeds, you come off the highway and have a series of stops – at traffic lights, or whatever – each time, the engine speed will drop noticeably below the 900 rpm idle speed, then come back up to 900, with an ever-so-slight surge.

What does it mean when your car’s throttle is failing?

When the throttle actually starts “failing,” you’ll feel a significant jerking motion as the engine tries to stall, often at highway speeds. Stepping on the accelerator pedal will, momentarily, do nothing. This can be quite unnerving to the uninitiated driver, or for passengers.