rpm

I got a 2003 C200K. Recently sometimes when I brake the engine rpm suddenly lower and the engine shake for about 1 second. Then everything resume normal. Do any one has any idea whats wrong with it?:confused: Many Thanks.

Can anyone shed some light on what could be the probable cause of what seems to be injector rattle / chatter at 2200 rpm and above, below this the engine sounds completely normal. The rattle remains right through the rev range although at anything above 3500 rpm it becomes difficult to pick out...

Had the chance today to give my newly acquired steed a bit of beans for the first time and have to say that I was really impressed by how goddam rapid it is, however, I seem to have a quite obvious flat spot at 4000 rpm. Up to 4k it goes like stink then it seems to, take a breath if you like...

As the title suggests, to-day my car has decided not to rev above 3000. Kick down is not available. No messages have been displayed nor malfunctions noted. What's wrong??:(

Morning. A friend of mine has a CLK (pre-facelift) 320 V6 Auto that hesitates at 4k rpm or there abouts, mostly seems to happen upon kick down but will do it sometimes when driven normally not using kick down. I've suggested MAF problem or possible fuel filter? Any other suggestions, in case...

Hello again, W210 E320CDI runs smoothly but wont rev above 3000rpm in Tip or in N, also no kickdown when making the accelerator switch. Read alot of threads on the MAF sensor but the idle is smooth and disconnecting it has no effect, does this rule it out or could it still cause these...

Wifes car is doing just over 3k at 80mph just curious as to what other peoples c320 PETROL did i mention PETROL versions are doing. I thought it seemed a bit busy sounding its defo in 5th. Lynall

I'm getting quite a substantial resonance between 1800RPM & 2100RPM, it only seems to occur when driving so it is hard to pin point. I have briefly looked at the exhaust, Banging the boxes & heat shields but haven't managed to replicate the noise, the strange thing is, the area where it sounds...

I have noticed that my 2003 SL500 resonates in the cabin if I'm going uphill at around 1200 RPM. Is this normal or should I be under the car looking for heatshield or exhaust contacting the body? It can be felt buzzing through the steering wheel and floor sometimes. It's not bad at all but is...

Well OK, it's not a car motor, but an electrical motor and it's not for a new electric car, but for a hoover........oops I mean vacuum cleaner. But still an interesting piece of technology news I thought: Dyson unveils 'world's fastest motor' in new vacuum

Hello, Having read on the forum that it is not possible to set the idle rpm at a user desired speed, I was wondering if the idle rpm was increased to a deisred setting by tightening the accelerator cable a bit. The idle speed would increase, but would this result in any damage? I personally...

I can find in the technical literature that the M271 engine comes with two different pulley ratios for the supercharger drive, 2.3 (C180 and C200) and 2.5 (C230). The given torque and power graphs range till 6000RPM so if that is the rev limit of the engine, the max RPM of the charger would be...

Hello to all I got a problem , when I turn ignition on then turn the A/C on, the RPM playing between 5 and 10 (up down up down etc...) , but if i stoped the A/C the RPM will be normal , also , when I turn ignition on then turn the A/C on, the RPM playing between 5 and 10 (up down up down...

Hi there! I've been lurking around the forums for a while, but I haven't built up the nerve to join until today...:p I bought a well-used W202 this May and I love it, except for one major fault; most of the time it won't go over 4000 rpm! When I hit exactly 4000, it just starts to lurch, and...

Hi Fellow MB owners I've got a S430L Year 2000 Has any one ever had one that dies after 2500 RPM, I’ve just had the car serviced with a full complement of spark plugs oil air filters ect. Took the car up to the lakes for the week end and noticed if I put my foot down ass soon as it comes...

Hi I noticed today that my 1999 c200 momenterily makes a slightly metallic rattle as you drive through 2500 rpm (just before it changes up when cold). It does not make the noise on overun, but it does when reving past this point in nuetral. I think it is coming from under the car, could it...

My c230k tends to idle at traffic lights etc at about 1200rpm, it sounds a little too high, and after a minute or two it does usually drop to about 8/900, is this normal? Can't seem to recall my other Merc idling this high, any info appreciated. Other than that, the car runs and sounds...

Wonder if you guys can help. 1991 200E starts ok and revs up to 4000rpm no probs but then just chokes itself - it is almost impossible to drive. checked OVP, fuel pressure, air box and no luck. Any other ideas? Someone suggested a blocked cat. Also Steering Box leaking badly, whats easier...

Does any one know the part number for a RPM sensor in a 722.6 autobox?? Andrew

HI PLEASE PLEASE Can Anyone help just got back from leaving wife to work and the car sudenly wont rev past 3000 rpm. Goes Ok up to it then struggles from 2800 to 3000 then thats it stays there as if somethings holding it back. The car is a C270 CDI Model Year 2002 with 58000 miles. Any...