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Lou P. master tech
Lou P. master tech, Mercedes Technician
Category: Mercedes
Satisfied Customers: 3730
Experience:  15 years master certified 100% fix rate and have access to factory radio codes, wiring, and instructions.
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CLK 320: Unable to reset Service A light using factory procedures

Customer Question

Unable to reset Service A light using factory procedures - 06/02 CLK 320
Submitted: 1 year ago.
Category: Mercedes
Expert:  Lou P. master tech replied 1 year ago.
Hello my name is ***** ***** i will do my best to help you , i strive for EXCELLENT service and nothing less. Ca you give me your vin and explain to me in detail what you are doing ? And what's happening on the dash ?
Customer: replied 1 year ago.
WDBTJ65J63F012071 - when I turn the key on, it says "Service A exceeded by 200 miles". When I scroll to the mileage or temp. screen and push the button 3x, no voltage screen. I pushed it 3x pretty fast, but nothing. I tried it with key in 1st position, 2nd position, and nothing worked. I also had all the doors, windows, hood & trunk shut. I tried pushing the reset button when the Service A indicator first appears, but it just goes away and nothing happens.
Customer: replied 1 year ago.
I also tried it with the instrument cluster totally asleep before I turned the key on, still nothing.
Customer: replied 1 year ago.
It's a simple 3-gauge cluster, clock, speedo, and tach.
Expert:  Lou P. master tech replied 1 year ago.
Ok so you are close !! You have to make sure the "home" screen is displayed. That is the basic odometer screen that will show the mileage and outside temp. So press the page button not the arrows , turn the key on and press the page button (the button with the 2 squares ) doesn't matter which one , just press it until the home screen appears. Then shut the car off. Turn to first click then press the dash button 3 times. Here are the factory instructions
Let me know if you get it. Lou
Expert:  Lou P. master tech replied 1 year ago.
Here is also a YouTube link.
Let me know if you have issues. Lou. Please take a second and click the box and rate my service GOOD OR EXCELLENT SERVICE if you feel I have been helpful and please request me in the future. If you feel I have not been helpful please DO NOT RATE BAD OR POOR AND WASTE YOUR MONEY , I will opt out to see if another expert can provide more or better assistance so you're not wasting your money!!. Thanks for choosing just answer. Lou. also , if you feel i deserve one , BONUSES are GREATLY APPRECIATED ! 😉
Customer: replied 1 year ago.
The initial screen showing service due also shows mileage and temperature. Is that the correct screen?
Expert:  Lou P. master tech replied 1 year ago.
That is. That is the correct screen. Did you also see the video ?
Customer: replied 1 year ago.
Yes. I find the temp. screen, but nothing happens when I push the button 3x. No voltage screen.
Customer: replied 1 year ago.
I've tried it multiple times now with zero results.
Customer: replied 1 year ago.
Any ideas?
Customer: replied 1 year ago.
Customer: replied 1 year ago.
Are you still there?
Customer: replied 1 year ago.
Is there another tech I can deal with?
Expert:  Lou P. master tech replied 1 year ago.
Omg so sorry our internet went down I am here. Are you there ?
Expert:  Lou P. master tech replied 1 year ago.
I sent you a offer. Maybe it's Better we speak on the phone to get this cleared up
Expert:  Lou P. master tech replied 1 year ago.
Make sure all the Doors, hood , and trunk are closed. No warnings on the dash. Key at first click.
Expert:  Lou P. master tech replied 1 year ago.
Have you had any luck ? So sorry for earlier. So frustrating when the internet goes down in the middle of a business day. I do really really apologize

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