ESP, Cruisetronic problem
I don't think the cause is under-voltage because it happens with a freshly charged battery. The car has a service appointment next week. Any thoughts in advance?

The one thing I know that's wrong with this car is a small transmission fluid leak dating from the summer when the dealer did a drain and refill (twice!). Nothing reaches the garage floor but when I wash the car after a dry spell I see what looks like a reddish-tinged oil sheen run off from under the engine area. It's going back this week for an inspection and presumably another try at stopping the leak. Curiously, MB appears not to have given us a low-fluid warning message. I'm wondering if this might be a cause.

This is a pic of the part ~ costs a whole $10

See 115

Here is the W203 bulletin. Ignore VIN's it applied to all 2000 onward 722.6 transmissions.
https://mbworld.org/forums/attachmen...e-campaign.pdf
Read those codes!

https://mbworld.org/wiki/index.php/F...ngR%26R-1-.pdf
It is important to lift the front passenger carpet & ensure that fluid has not wicked up the harness. If it gets into the TCU it is an expensive replacement.
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Sorry ~ then you will have to look further.
Let's see what codes are displayed.
In SA they kept all M112/113 engined cars 5 speed & only moved to the 7G with M272/273 quadcam cars.
Last edited by Glyn M Ruck; Oct 30, 2012 at 11:44 AM.
The "model year" concept can be confusing to non-USA folks because some countries look at "registration year". Here, that means nothing - everything we do is based on model year. And very rarely does MBZ change anything in the middle of a model year. Ford can be bad about it, though. Model year is also not just a made-up thing, either. CAFE (fuel efficiency) and safety equipment requirements go by model year. GM actually played this game to their favor with CAFE. Back in the 90's when everybody was scooping up giant fuel guzzling SUVs like Tahoes and Suburbans, GM was in jeopardy of exceeding their 1996 CAFE allowances, so they just started making them as 1997's, but that was in January of 1996. By July of 1996, they were selling 1998's! Of course this backfired when the US government started requiring additional safety equipment in newer models, so in order to advance to the next year, they had to include things like ABS and extra airbags.

Should this procedure be done from time to time (like the ECU reset)? I reset my ECU once a month or so.
Last edited by mis3; Oct 31, 2012 at 09:11 PM.
Where is the steering angle sensor located, please?

It started after i changed the battery which is a new Bosh 100 AHR
I get the message in the morning but it goes away after a short drive.
it stays longer on a cold or rainy morning than a hot weather.
I have tried to wash the car but i didn't get the message after a wash, so i ruled out the rain thing.
I didn't get the message on the days when the temperature was around 26~28 degree C.
I have already Changed the Electrohydrolic Pilot Bush but still the same.
the Mechanic argued that the error is due to some dirt building on the Throttle flap, he cleaned it and still the same.
I have checked the car with the star diag 2 times, none of them was on the morning when the malfunction was there. The first time i had 3 faults stored, Terminal T30 low voltage, Steering Angle Sensor, and Lateral Acceleration Sensor. The second time there was only the steering angle sensor fault stored.
I not quit convinced with the steering angle sensor nor with the lateral acceleration sensor, why it goes away after the car warm up??!!
Any idea guys????

The Yaw or lateral acceleration sensor can also be troublesome.
thanks Rudeney and Glyn


