MB Medic Mercedes-Benz Repair Guides, Service, How To DIY
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Below are instructions on how to reset the service reminder on a Mercedes-Benz Sprinter. You will need to perform this procedure after an oil change or if you have had your Mercedes Sprinter serviced by an independent auto mechanic. Note that the steering wheel design changed over the years, but the instructions for resetting the service indicator reminders are the same.
Instructions on how to reset the Mercedes Sprinter Service Reminder
The instructions below apply to Sprinters that have steering wheel buttons. If your Sprinter doesn’t have steering wheel buttons, follow the instructions as per this guide.
- Insert the key in the ignition and turn to position II.
- Press the menu buttons on the left steering wheel until you see the mileage.
- Press the up arrow until you see the service entry, which reads Service A in so many miles or Service B in so many miles. The letter matters, and the section below explains what each one covers.
- Press the zero reset button on the side of the instrument cluster and hold until you hear a beep.
- Once you hear the beep, return to the steering wheel and press the menu button.
- Press the up arrow to see “Confirm Complete Service.”
- Confirm by pressing the reset button on the instrument cluster and holding it down for three seconds.
on the left steering wheel until you see the mileage.
If you would rather watch it done, here are two videos of the same procedure.
What the reminder actually is, and what Service A and B mean
This is the part worth understanding before you press anything. The Sprinter does not measure the condition of your oil. ASSYST PLUS, the system behind the reminder, works the interval out from your mileage, the time elapsed, how the van is driven and the conditions it runs in. That is why two identical Sprinters can show different distances to the next service, and why your interval is not the same as the one in a forum post.
When you reset it, you are telling the van that the work was done. Nothing verifies that. So the reset is a record, not an inspection, and that cuts both ways:
- Reset it without doing the service and the next reminder arrives a full interval later with nothing on the van tracking that the oil is old. The reminder was the only thing keeping count.
- Do the service and forget the reset and the van keeps nagging, which is how people end up changing oil twice in a few thousand miles because the display told them to.
So do the reset as part of the job, in the same session, the way the factory schedule treats it.
The letter on the display tells you which interval is due, and the two alternate. Knowing the difference is useful when an independent shop quotes you, because the gap between them is real work rather than a price tier.
- Service A is the smaller one: engine oil and filter change, a brake fluid level check, a brake lining check, a washer system check, and the service indicator reset.
- Service B is everything in A plus a brake test, a tire check, an inspection of visible components, a power steering fluid check, a cabin combination filter replacement, a poly-V belt check and a flexible coupling check.
If a quote for a B service costs barely more than an A, ask which of those items are actually included. And if the display reads that a service is exceeded by a number of miles rather than due in a number, you are already past the interval and that figure is how far.
If the button sequence will not take
The sequence above depends on a small physical reset button on the side of the instrument cluster, and on the cluster still being able to display the service menu. Both of those fail on older vans.
Before assuming the procedure is wrong, check the obvious: the key must be at position II with the engine off rather than running, and the sequence has to be completed without the display timing out and dropping back to the odometer. Most failed attempts are one of those two.
If it genuinely will not take, a scan tool that talks to the instrument cluster can perform the service reset directly rather than through the button sequence, which is the normal answer when the cluster menu refuses. The YOUCANIC UCAN-II Pro runs Mercedes service routines of that kind alongside reading the control units, covering nearly everything Xentry does apart from online VIN coding. On a van that has had a cluster fault for years, that is usually the quicker route than fighting the buttons.
And if the cluster itself is the problem, which on these vans shows up as missing segments, a dim or dead display, or a reset button that no longer responds, that is a repair rather than a replacement. Module Medics rebuild Mercedes instrument clusters at board level and return your own unit, so the mileage and the coding stay with the van. A replacement cluster has to be programmed to match, which is where the cost goes.
