2003 E320 Throttle position sensor - Mercedes-Benz Forum

Go Back   Mercedes-Benz Forum > Mercedes-Benz Sedan Forums > W211 E-Class
New User? Register - Forgot Password

BenzWorld.org is the premier Mercedes-Benz Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 01-10-2012, 08:56 PM   #1 (permalink)
BenzWorld Junior Member
 
Date registered: Jan 2012
Posts: 9
2003 E320 Throttle position sensor

Does anyone have a picture or could explain to me where the throttle position sensor is located on a 03 E320? Please help!!!
kanak5522 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 01-10-2012, 09:14 PM   #2 (permalink)
BenzWorld Elite
 
Check Codes's Avatar
 
Date registered: Mar 2005
Vehicle: '01-E320 & 02-ST2
Location: John 15:18-19
Posts: 28,797
It's up near the brake master cylinder under the hood. The throttle cable connects to it. If it's not apparent to you, then have a friend step on the gas pedal (engine off) while you are looking in that area and you'll see it moving.

If you need a new one, parts geek has it for a good price and it is very easy to change.

Good luck.
__________________
Socialism is a philosophy of failure, the creed of ignorance, and the gospel of envy; its inherent virtue is the equal sharing of misery. (Winston Churchill)
Check Codes is offline   Reply With Quote
Old 01-10-2012, 09:22 PM   #3 (permalink)
BenzWorld Elite
 
Check Codes's Avatar
 
Date registered: Mar 2005
Vehicle: '01-E320 & 02-ST2
Location: John 15:18-19
Posts: 28,797
This is what the actual part looks like, but there is stuff on top of it so it's not exactly how it appears under the hood.

Check Codes is offline   Reply With Quote
Old 01-10-2012, 10:08 PM   #4 (permalink)
BenzWorld Junior Member
 
Date registered: Jan 2012
Posts: 9
Quote:
Originally Posted by Check Codes View Post
It's up near the brake master cylinder under the hood. The throttle cable connects to it. If it's not apparent to you, then have a friend step on the gas pedal (engine off) while you are looking in that area and you'll see it moving.

If you need a new one, parts geek has it for a good price and it is very easy to change.

Good luck.
Thanks, big help this was driving me nutz for hours... i will attempt locating it in the morning.
kanak5522 is offline   Reply With Quote
Old 01-24-2012, 09:25 AM   #5 (permalink)
BenzWorld Junior Member
 
Date registered: Jan 2012
Posts: 9
Quote:
Originally Posted by kanak5522 View Post
Thanks, big help this was driving me nutz for hours... i will attempt locating it in the morning.
I tried to locate the sensor under the hood but found out the sensor was in the gas pedal and replaced it but got the same problem code on the OBDII scanner P0120 and car still will not accelerate past idle speed. I then proceeded to replace the MAF sensor and got no better results. I checked both batteries and both started of at reading 12.6V and running the car batteries measure 14.3V. I also have the ESP light on saying defective. I am at a lost, can someone help with similar problems.
kanak5522 is offline   Reply With Quote
Old 01-24-2012, 10:47 AM   #6 (permalink)
BenzWorld Veteran
 
Date registered: Sep 2004
Vehicle: 98 E-320, 2003 E-500
Location: South Florida
Posts: 675
Quote:
Originally Posted by kanak5522 View Post
I tried to locate the sensor under the hood but found out the sensor was in the gas pedal and replaced it but got the same problem code on the OBDII scanner P0120 and car still will not accelerate past idle speed. I then proceeded to replace the MAF sensor and got no better results. I checked both batteries and both started of at reading 12.6V and running the car batteries measure 14.3V. I also have the ESP light on saying defective. I am at a lost, can someone help with similar problems.
Not sure if you did it but did you erase the codes using the scanner?

If you don't have the code scanner try the reset procedure:

- Turn the Key to the "on" position (the position right before you start your engine)
- Press and hold your gas pedal down for like 5 seconds
- Turn Key to "off" position (dont remove the key) and then release the gas pedal. Then wait at least 2, if not 3 minutes, for the system to reset.

Good luck
JeffreyP is offline   Reply With Quote
Old 01-24-2012, 11:26 AM   #7 (permalink)
BenzWorld Junior Member
 
Date registered: Jan 2012
Posts: 9
Quote:
Originally Posted by JeffreyP View Post
Not sure if you did it but did you erase the codes using the scanner?

If you don't have the code scanner try the reset procedure:

- Turn the Key to the "on" position (the position right before you start your engine)
- Press and hold your gas pedal down for like 5 seconds
- Turn Key to "off" position (dont remove the key) and then release the gas pedal. Then wait at least 2, if not 3 minutes, for the system to reset.

Good luck
Thanks wii try that!
kanak5522 is offline   Reply With Quote
Old 01-24-2012, 03:49 PM   #8 (permalink)
~BANNED~
 
Date registered: Oct 2010
Vehicle: 1999 E300 TD
Posts: 2,045
What you have failed to recognize is that P0120 is a very elusive but specific fault for a pedal/throttle position sensor, but when properly diagnosed very rarely is the TPS the fault.

Then you wasted your money on replacing a MAF that has nothing to do directly with a P0120.

FYI there are three other sensors that all provide data to the ECU to accelerate the vehicle.

If you do not want to continue to change out non applicable parts, do yourself a favor and go to an inde and have him read the voltages of the sensors in the circuit and he/she or it will have your problem solved. Slow down and try to understand you cars systems before you decide to jump of the fence and ----- them all.
Plutoe is offline   Reply With Quote
Old 01-24-2012, 05:32 PM   #9 (permalink)
BenzWorld Junior Member
 
Date registered: Jan 2012
Posts: 9
Quote:
Originally Posted by Plutoe View Post
What you have failed to recognize is that P0120 is a very elusive but specific fault for a pedal/throttle position sensor, but when properly diagnosed very rarely is the TPS the fault.

Then you wasted your money on replacing a MAF that has nothing to do directly with a P0120.

FYI there are three other sensors that all provide data to the ECU to accelerate the vehicle.

If you do not want to continue to change out non applicable parts, do yourself a favor and go to an inde and have him read the voltages of the sensors in the circuit and he/she or it will have your problem solved. Slow down and try to understand you cars systems before you decide to jump of the fence and ----- them all.
Already sent the car to the stealership for proper diagnostics, but if you don't mind me asking what three other sensors provide data to the ECU? Do you have a schematic?
kanak5522 is offline   Reply With Quote
Old 01-25-2012, 05:16 AM   #10 (permalink)
~BANNED~
 
Date registered: Oct 2010
Vehicle: 1999 E300 TD
Posts: 2,045
I do not have a function diagram for the acceleration circuit, however, the TPS voltage goes up when you accelerate and the ECU looks for a corresponding increase in voltage of the MAP repeat MAP(as you accelerate what happens to the manifold pressure??) The coolant temp sensor also provides the ECU with signals.

Regarding the MB drawing "ask the pasta guy" and or when you go to that dealer ask him(management) for the WIS document.
Plutoe is offline   Reply With Quote
Reply

  Mercedes-Benz Forum > Mercedes-Benz Sedan Forums > W211 E-Class

Bookmarks



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Topic Author Forum Replies Last Post
Can't find 2001 C240 Throttle Position Sensor/Pedal Travel Sensor online fruehling W203 C-Class 4 03-26-2011 08:39 AM
throttle position sensor Going into limp mode @ full throttle carczar W210 E-Class 11 01-29-2011 03:17 PM
FS: 2000 E320 Gas Pedal Actuator/Throttle Position Sensor Jagster For Sale/Wanted/Trade/Giveaway 0 11-08-2010 12:36 PM
Code 1542 (Pedal Value Sensor or Throttle Position Sensor) MDamg General Mercedes-Benz 1 02-24-2009 01:38 PM
Throttle Potentiometer aka Throttle position sensor 4BRATZ W163 M-Class 1 03-31-2007 02:44 AM


All times are GMT -7. The time now is 07:04 AM.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.1

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.