5000rpm Cutout 560SEL
 

The problem is that in every gear the motor won't spin more than 5k like it was electronically limited. I can understand this in high gear but in kickdown mode it won't shift to the next higher gear.
When passing etc, you have to blip the accelerator to force a shift
and this is NOT normal as it should turn 6k easy.

I have a 560 SEL 1988. My mom gave it to me 2 years ago. I have drove it before and it would never go beyond 5000rpm for the past 6 years with all maintenance up-to-date(until 2 years ago and 6k miles ago since I got the car). The car has 181,000 miles on it, and NO lights are ON now after replacing OVP relay today that caused high idle(1500rpm) and ABS light on(thanks for the fix on this site!). I have the car perfect now, except for it won't go beyond 5000rpm(even in park it cuts out at 5000rpm sharp!) Any suggestions would be great! thanks...

I would check the fuel pump relay, it should say 6000K on it, if not you have the wrong relay and thus improper rev limit.

Jonathan

Mine's doing a bit similar, although at a bit lower RPM, about 4k. The spark is very weak, so I'm planning on changing the coil. My fuel economy is also very poor.
Leads, cap and arm are new, so the only thing left is the coil!

The fuel pump relay is most likely problem (as suggested). should be marked as a 8 cylinder & list the cut-out RPM.

My FPR doesn't say 6000k on it. Thanks, I think I found the problem!

http://mywebpages.comcast.net/josephseab/fpr.jpg

Lyle,
That's your Klima (climate control) relay..

You want the one the one sitting next to this bad boy;-)

Jonathan

My old 420SEL did this. It turned out the cats were clogged.

5000 Rpm
 

The part number should be 003 545 25 05
Mike

Well, I ordered a FPR for a 560SEL. So this is what is in there now to be replaced:
http://home.comcast.net/~josephseab/500rpm.jpg

My car 260E, 1988, 440 000km, manual gear box stalls erratically , Fuel Pump relay changed recently (engine still stalling).

Do you know if there is a cut off based on high RPMs on such cars?

I use to drive very cool (3200 rpm max).

Can you tell me on which pin of the Fuel pump relay is located the rev signal/ cut off signal and by which sensor it is generated (is it TF or TD signal)?

5000RPM cutoff
 

Lyle;
The fuel pump relay 003 545 24 05 is for 103 (6 cyl) engined vehicle.
Mike

Thanks for the FIX
 

Once the new FPR arrived, I put it in my car. I revved it up to 6k instantly in netrual! I went down the road and the car took off shifting at around 6k like it was supposed to! Thanks for the EZ fix, I have lived with this problem for years. I never knew how much faster it would make my car! My mom had the car fixed on the road by MB road mechanic ten years ago in New York City. It took him about 10 min to get the car going again, but I never knew he put the wrong part in...Thanks again!

Wow these rev to 6K rpm? Awesome. I want one. I loved our 300SDL, and a 560SEL would be that on steroids.