idle

Hi My W124 at idle has a rather soothing rythmic reving pattern. About every 15 - 20 seconds the revs rise very slightly. This is hardly registered on the rev counter but does show on the oil pressure gauge. I have no idea if this normal? I have cleaned the throttle body (very little muck...

I am restoring a 71 W114 280CE with 69k on the clock. It has the Bosch D Jetronic system, and wont cold idle. Starts no problem, will idle when reaching normal temp and is ok warming up if you keep the throttle pressed to a fast idle. When warm idle is managed ok when engaging auto drive...

Hi, just bought a 1993 E220 W124, and in the last week it has been giving me a bit of a head ache. it would for no reason start shuddering, as if its not firing on one cylinder, but if the car is switched of and restarted, it runs normal. Revs also pick up to 1500 rpm. have changed the spark...

Had a few problems with my car recently. loss of power, engine cutting out and strange revvs. These problems have all been solved with a new bosch MAF and a new lambda sensor. However now there is a very small shake/fluctuation on idle. I was hoping this might be due to the car getting used to...

Afternoon Guys I have a 2005 C180K In stock which hunts at idle, engine light is also on. Error code refered to a HOT FILM MAF Problem, so we replaced the MAF Sensor with a new OE Part and the fault hasn't gone away and still hunts on idle! This car also has squeaky rear suspension...

99 W210 prefacelift 5.5 V8 AMG Had this problem in recent month where the engine is surging very random, from 2k rev poodling at 40 or under hard acceleration - the revs just die for 2 seconds then pick up again. Even when doing 70mph you can feel the car surging, but it's all so random...

Driving home about 30 minutes ago I pulled out from the New Forest on to the A35. It has traffic coming up fast at times so a decisive get away to join the road is always best. As I did so the engine warning light came on. I had started the car a few minutes previously and at that time the...

Hi everyone, Can I first take the opportunity to thank all you guys who are very, very clued up about Mercedes! I have spent a lot of time reading and researching on this forum before I went out and bought myself a Y-reg (2000) E320 estate (diesel). I have only owned the car for two weeks...

Hi all, I have a W124 prefacelift 230E M102 engine auto.. I was just wondering if it was possible to modify anything so I could get a lumpy idle, sort of like a 500E with exhaust upgrade or american muscle car idle sound..? I know those cars have V8 engines and have nothing to do with my car...

Just recently the C36 has developed a slight misfire - more noticable on idle than when driving. The rev needle fluctuates just a tiny amount - about 100 to 200 rpm. It is worse on warm starting - although the car starts fine - it idles rougher when warm. No fault codes showing. I'm going...

Hi guys This just may be a characteristic of an 'old' car, but I have noticed a pattern that if it is raining/has rained my car will start like it is running on 3 cylinders. Turn it off/on and back to normal with a slight lumpy idle. Today with it being dry it starts and idle almost...

car runs fine but on idle runs lumpy

Hi to all, Could really appreciate some help wit this one. My cosworth has been fairly idle for the last 12 months and now have noticed that in start up it seems to have a rough idle and sems to cut out,unless i keep gas down a little and wait for the car to warm up,in which case it...

Hi, I'm trying to put an Old G class back on the road that's been sitting for a fair few years, it fires up but when the initial choke goes out so does the car, it wont idel unless I keep my foot on the accelerator and if I rev it high I sometime get it small backfire but not always?? The...

I noticed whilst sat on the Glasgow circular car park ( otherwise known as the M8) that when at idle my engine has for a few moments been varying by about 100rpm whilst sat still. This is something that's quite intermittent and despite my best efforts to cause it I've been unable to replicate it...

How do i adjust the idle speed on my 190E 2.3 8V? and how many rpm should it run on? it got auto transmission..

Changing my belt tensioner, and idle pulley, on the idle pulley, which way to undo? right, or lefthanded thread?

Hi all I was wondering whther you might be able to shed some light on this please. 93L W124 E220. The car has an annoying intermittent fault of the idle fluctuating mostly when the car is warm. Doesn't happen all the time, but when it does it nearly stalls cos the revs drop so low. Any idea...

when my 126 300SE is on idle and in P, i can hear the engine revving itself slightly as if im taking my foot on and off the gas. oil gauge also goes up and down. after a while it settles, but repeats this rebelliousness again after a while. any ideas?