SamuelP

Just on an instant: almost no start and running rough. Is it an intermittent problem? Or rather one that may come and go? Or hokey acting?

How common is the CPS problem. It is listed high on a website I found.

ohollenbeck

I just read the same info, probably the same thread as you did.

It convinced me to be proactive and just change it out now.

$50 for a part that "generally" has a life span of 10 years is a no-brainer.

The only other thing I need is a 1/4 etorx socket set, $20..

So for $70 and about 30 minutes DIY time, that problem is avoided.

I already ordered one from AutohausAZ, it will be here in two days, and will save an expensive tow. I bet it's never been changed on my 99, even if it has, I'm making sure..$70 is cheap insurance.

The problems you are asking about don't fit that other information. CPS failures they described are GO-NOGO, nothing in the middle, the engine either runs correctly or it doesn't run at all.

SamuelP

Couldn't find on Autohausaz but found an FAE @$54.00.

Any feedback as to quality? (says they supply BMW and Porsche)

SamuelP

Well the guy at Pelican parts recommended that I don't buy the FAE part.

Any suggestions at to which to buy? Couldn't find one on Autohausaz.

lynns

This is a common problem with 113/112 engines at about >75K miles. If your going to replace ANY of your engines sensors always choose a Bosch product. Don't go with cheap eBay Chinese clones. This DIY has been written up on several of the forums like BenzWorld 129.

The problem will exhibit itself when you are in traffic and the engines gets hot. All of a sudden it will just die with no CEL. So you have to wait awhile until the engine cools down and she will start until it gets hot again. The easiest way to diagnosis this problem is to have a gallon of water available to pour over the top back end of the drivers side of the engine at the bell housing where the CPS is located. The water will cool the sensor and the engine will start. VIOLA!

If you own a 99-02 SL buy your $45.00 CPS at AutohausAZ and carry it in the trunk for protection. Or until your ready to tackle this hard to get at location. Be prepared to drop the bolt that holds the CPS unless you read one of the DIY and take a suggestion from one of the guys as to how NOT to loose the bolt.

SamuelP

I searched the AutohausAZ site with no luck. Bought from Parts Geek @$102.nn Tried buying a Bosch from ?memory? and got an email back saying they were out or no longer supplying them.

Thanks for the advice; hope to run soon.

lynns

Check out p/n 0261210055 Bosch at $93.20

SamuelP

Thanks. They don't have it available at this time - it is on back order.

SamuelP

New sensor in - runs as though new.......... kawobunga ans some

morganb

I am worried my car may have this issue. Normally starts and runs fine for a while. Sometimes once warm runs really rough or evens stops at lower RPM. Sometimes will not restart till cool. Can someone post a picture of where the CPS is so I can see if I can try the water trick to cool it down. Note I have RHD model. Thanks a lot.

lynns

It would help if your profile told us what year your car is. And tell us the mileage.

morganb

About 100,000 KMs, Rego cert say 93 model with a WBD129 Vin Number. SL500

lynns

Don't forget to Search the forum as well. Take a look at this info. Keep in mind that this is for a LHD 113 engine and you have a 119. Should help. Start here and scroll down. http://www.benzworld.org/forums/r129...ml#post3618924

morganb

Lynns, thanks very much for the link, I tried to search but did not come up with that thread. I used the water trick last night and that let the car run again so I ordered a sensor last night.