Question about 2005 Mercedes-Benz Mercedes Benz CL500

5 Answers

Check engine light

Mileage 44,000 I have a check engine light that keeps coming on and going out. Every time I am about to take it in for service the light goes out and the car continues to run fine. If my car runs fine and the light is out why would I take it in when I know they are going to charge me regardless.

Posted by on


5 Answers

  • Level 1:

    An expert who has achieved level 1.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 1 Answer

Check 02 sensor--not a big problem

Posted on Nov 07, 2008

  • Level 1:

    An expert who has achieved level 1.


    An expert who has answered 20 questions.


    An expert that has over 10 points.


    An expert whose answer got voted for 2 times.

  • Contributor
  • 61 Answers

Might be a defective trans control module,have seen stored codes for this that will when current,set a check engine light-have them check for any stored codes and to check the fault frequency of these faults,the one with the mose frequency is most likely you cause,usually a check engine light will still set a stored code in "ME control unit" even though the light has gone out-

Posted on Aug 10, 2008


Have had similar problems with a 2001 C320. Turned out to be the fuel cap wasn't put on correctly. The fuel cap alignment is a little tricky, and sometimes requires adjustment of the locking mechanism.

Posted on Jun 29, 2008

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

I know the problem there is a car sensor in your Vechial that is bad it is near the engunie. Thats what triggers off. This happen to me and the guy go this thing that he pluged it in fuze box. Yes that means that there are errors you should take the vechail to a Mercedes Benz Dealer tell them that this the problem. Tell them if you guys could use the computer to correct any errors and can you check my Electrinc system sensor to make sure that is okay because that does trigger it off.

Posted on Jul 20, 2008

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 291 Answers

Your car has many systems on board, that require monitoring. All sensors need to be operating. Having your own code reader is a nice tool to diagnose this kind of problem. The code readers that are available today are hand held and plug right into the OBD2 computer link inside your car. You scan your car yourself and retrieve the error codes. The scanners usually come with a chart that lists the codes and their respective components.

Posted on May 15, 2008

1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

2 Answers

What does serv mean when I start my engin and keep getting a message on dash

Your vehicle requires to go to a service center and have the computer reset, it is just a service interval reminder warning usually based on your mileage and nothing to be alarmed about in most cases..

May 10, 2014 | 2009 Renault Trafic 1.9dCi

1 Answer

Service light on

Possible time for the priority service time so as to keep the engine in order. Please check this out with you log book and the mileage clocked in the vehicle to confirm the error.
Good to clarify with your dealership log of the vehicle..

Jul 04, 2012 | 2003 Chevrolet Cavalier

1 Answer

What does the maintenance light indicate when it comes on on a 2004 honda accord 4 door sedan

Malfunction indicator for engine and there is one for maintenance so one that looks like an engine in the RPM right at i think 6 or 7 is engine the other is for oil and service. If your car is full of oil running fine and recently serviced these lights come on from time to time so you take it to dealer if all is well follow my instructions below.
1) With engine turned off, press & hold the mileage reset stem on the speedometer >
2) Start engine >
3) Wait 10 - 20 secs until light goes off >
4) Release the reset stem
Please rate my solution and leave testimonial for services this is how i earn my achievements Thanks in advance

Apr 21, 2012 | Honda Cars & Trucks

1 Answer

I have a 2005 toyota corolla with 44,000 miles the engine light just went on. I know it is time for an oil change, and the car sounds and drives fine, please help

Check that your gas cap is on tight (clicks). Take your car to an auto store and have them read the codes(usually free). They can tell you what the codes mean. You may only need a new oxygen sensor. I have a Mitsubishi that the light regularly turns on in the winter and off in the summer(196,000 miles). Gas mileage is stable. Your car is newer but a road trip may be all it needs to turn off the light.

Sep 24, 2010 | 2005 Toyota Corolla

1 Answer

Oil presure when I first start up the acr, the oil presure is about 40 but soon goes all the way down to the red and the red light goes turns on. It does that on idle. When I give it gas, it goes to just...

I suspect that because your car is 13 years old it has high mileage. That would cause this because things are starting to wear out. You could try going to a heavier oil like a 15W-40 or 20W-50. The heavier oil will build pressure and will lubricate better because it's thicker. It's time to start planning your next step because that won't last forever. You looking at an engine rebuild or replacement.
If the mileage is low you should get the oil pump checked out. It may be going. Hope this helps.

Sep 23, 2010 | 1997 Buick LeSabre

1 Answer

How do you know when to change the oil?

The oil should be changed every 4,000 miles. You can keep a log of the mileage at each oil change, or just divide the total mileage by 4,000. Change the oil at 40,000...44,000...48,000...etc.

Jul 17, 2010 | 2006 BMW 3 Series

1 Answer

When i start my jeep a light comes on and it says (perform service)what can Ido to get it fixed

The owners manual will have instructions on how to reset the light.
It just comes on at regular mileage intervals to remind you to have it serviced. If it is the check engine light , welcome to the club , it is a very common problem with that vehicle , people spend hundreds many times and it just keeps comming back. Has to do with emmisions and can be caused by something as simple as a leaking gas cap.

Apr 08, 2010 | 2002 Jeep Grand Cherokee

2 Answers

Service Engine Soon Light

take it to Autozone or Kragen auto for a free check of the trouble code that turned on the check engine/service engine soon light, then post the result here, there are over 100 diff faults that can turn the light on, most common are O2 sensors and loose gas caps.

Dec 30, 2008 | 1999 Ford F150 Regular Cab

Not finding what you are looking for?
Cars & Trucks Logo

464 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mercedes-Benz Experts

Colin Stickland
Colin Stickland

Level 3 Expert

22258 Answers


Level 3 Expert

77169 Answers

Michael Contreras
Michael Contreras

Level 2 Expert

166 Answers

Are you a Mercedes-Benz Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides