Need advice on 2003 S500 default codes Pre-safe Inactive and Check Engine.

Syed_Baghdadi786
150

Asked by Syed_Baghdadi786 Apr 01, 2013 at 02:48 PM about the 2003 Mercedes-Benz S-Class S500 4MATIC

Question type: Maintenance & Repair

Need advice on 2003 Mercedes S500 with default note stating "Pre-safe inactive and Check Engine light on. Problem is that the Transmission is not shifting from 2nd gear.  Note, I just tried detailing and washed the emgine compartment light.. Your help is sincerely appreciated.My e-mail addresses are: SAB3@Chrysler.Com and Syedsab3@GMail.com

4 Answers

7jimmy7
14,315

pre sets ,or limp mode when a sensor disconnect ,failed or voltage blur like due to water in jack plugs of sensor . every thing returns after problem corrected.on a Benz I don't know if a scanner will be needed to erase code after dry out, or new sensor.or was a precondition existing? cant see a hood light having any effect even sumerged

1 out of 1 people think this is helpful.
Syed_Baghdadi786
150

Sorry, First of all my sincerest thanks for your advise. I will try to update this posting with my findings. I apologize for making a typo error on my question. I wrote " I washed the emgine compartment light" I actually meant, I washed the engine compartment last night. I left my S500 home and came to work in a loaner car. I hope you are right. I hope all that moisture from using the water hose will be dried off and my problem will be solved, by the time I get home tonight. My tel # is 248 760 7789, should anyone has any questions. Thank you sincerely. Syed.

Syed_Baghdadi786
150

I took my car this evening to Auto Zone. They check it out with the OBD2 sensor and told me: 1. Turbine speed sensor malfunction. This could be either due to poor electrical connection or due to a failed Turbine speed sensor. 2. Electrical transmission control system malfunction. This could be either due to poor electrical connection or Check powers and grounds to TCN. Although they Auto Zone sells several different sensors, they do not sell the Turbine Speed Sensor for S500. They strongly recommended me to take my car to a Mercedes dealer.

morocco4life
65

You have to get a used or new Electronic transmission module which is located in the right engine compartment fuse box attached to the fire wall.. Its a black box 5'' by 5''.. Thats your problem 100%….

2 out of 2 people think this is helpful.

Your Answer

Add photo

Related Questions

S-Class
Looking for a Used S-Class in your area?
CarGurus has 7,865 nationwide S-Class listings starting at $2,900.
ZIP:

Search Mercedes-Benz S-Class Questions

Mercedes-Benz S-Class Experts

#1 Tom Demyan
Tom Demyan
Reputation 380
#2 lightGear
lightGear
Reputation 370
#3 Michael Kane
Michael Kane
Reputation 330
View All

Related Models For Sale

Used Mercedes-Benz E-Class"
534 Great Deals out of 20,413 listings starting at $1,000
Used BMW 7 Series"
107 Great Deals out of 5,314 listings starting at $1,900
Used Mercedes-Benz C-Class"
662 Great Deals out of 23,138 listings starting at $1,799
Used Mercedes-Benz SL-Class"
97 Great Deals out of 2,540 listings starting at $3,950
Used Mercedes-Benz CL-Class"
38 Great Deals out of 653 listings starting at $3,996
Used Audi A8"
36 Great Deals out of 2,300 listings starting at $6,993
Used BMW 5 Series"
550 Great Deals out of 17,437 listings starting at $2,350
Used Land Rover Range Rover"
88 Great Deals out of 3,034 listings starting at $3,700
Used BMW 6 Series"
118 Great Deals out of 2,896 listings starting at $7,995
Used Mercedes-Benz M-Class"
268 Great Deals out of 12,201 listings starting at $1,500

Used Cars For Sale

2015 Mercedes-Benz S-Class For Sale
3 Great Deals out of 3,708 listings starting at $89,850
2014 Mercedes-Benz S-Class For Sale
4 Great Deals out of 218 listings starting at $78,990
2013 Mercedes-Benz S-Class For Sale
43 Great Deals out of 773 listings starting at $35,800
2012 Mercedes-Benz S-Class For Sale
10 Great Deals out of 261 listings starting at $31,900
2011 Mercedes-Benz S-Class For Sale
10 Great Deals out of 217 listings starting at $31,979