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

350

Asked by Apr 01, 2013 at 02:48 PM about the 2003 Mercedes-Benz S-Class S 500 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

5 Answers

19,015

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

2 out of 2 people think this is helpful.
350

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.

350

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.

75

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.

Pre-safe inactive and check engine light is obviously caused by a faulty conductor Plate. I had the same problem with my 2002 S500 like 2 weeks ago, gone on Limp- Mode . I replace the conductor plate and the Fucken Asso is kicking and changing like never before.Do not be confused by anything else buddie.

Your Answer

Add photo

Related Questions

S-Class

Looking for a Used S-Class in your area?

CarGurus has 7,012 nationwide S-Class listings starting at $3,000.

ZIP:

Search Mercedes-Benz S-Class Questions

UK Questions

Are you a UK consumer? CarGurus now has a discussion forum in the UK.

Mercedes-Benz S-Class Experts

#1 Tom Demyan
Tom Demyan
Reputation 690
#2 Michael Kane
Michael Kane
Reputation 500
#3 lightGear
lightGear
Reputation 410
View All

Related Models For Sale

Used Mercedes-Benz E-Class
524 Great Deals out of 21,649 listings starting at $1,450
Used BMW 7 Series
152 Great Deals out of 5,597 listings starting at $1,600
Used Mercedes-Benz C-Class
829 Great Deals out of 31,298 listings starting at $2,200
Used Mercedes-Benz SL-Class
75 Great Deals out of 3,154 listings starting at $3,000
Used Mercedes-Benz CL-Class
36 Great Deals out of 645 listings starting at $6,500
Used Land Rover Range Rover
86 Great Deals out of 4,589 listings starting at $5,000
Used Audi A8
41 Great Deals out of 1,814 listings starting at $3,967
Used BMW 5 Series
664 Great Deals out of 15,900 listings starting at $1,999
Used BMW 6 Series
128 Great Deals out of 3,195 listings starting at $7,499
Used Cadillac Escalade
315 Great Deals out of 9,954 listings starting at $1,900

Used Cars For Sale

2017 Mercedes-Benz S-Class For Sale
1,889 listings starting at $93,685
2016 Mercedes-Benz S-Class For Sale
10 Great Deals out of 536 listings starting at $76,888
2015 Mercedes-Benz S-Class For Sale
9 Great Deals out of 549 listings starting at $57,890
2014 Mercedes-Benz S-Class For Sale
18 Great Deals out of 515 listings starting at $46,995
2013 Mercedes-Benz S-Class For Sale
7 Great Deals out of 238 listings starting at $30,900