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2018 mercedes-benz GLC-Class electrical problems

severe 14 complaints filed with NHTSA · avg repair $850

Complaints
14
Recalls
0
Crashes
1
Avg fix
$850

What owners are reporting 1 most recent

electrical · filed 11/06/2025

I had the engine light come on and took it to the dealership. They quoted me over 8 thousand dollars to fix. I took it to a repair shop that works on luxury cars and they fixed it for less than 1000 dollars. I had to have the transducer fixed in the turbo in my engine and when they did that they found oil in the electrical harness. That was caused by the oil seperator. They told me that it was a…

Common questions

How serious is the electrical problem on the 2018 mercedes-benz GLC-Class?

It's a meaningful issue. 14 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $850.

At what mileage does the electrical typically fail?

Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.

What does it cost to fix?

Independent shops typically charge around $850 for electrical repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.

Are there any recalls related to electrical?

No active recalls currently cover electrical issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.

Other problem areas on this vehicle

Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA) public records database. Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are independent-shop national averages and may differ in your area. Some links on this page are affiliate links.
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