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Problems with the Cooling System
My vehicle is a 2024 GLE450D Premium. The problem notice "Cooling System Malfunction, Reduced Drive System Perform" has shown twice in the six months that I've owned it. Come to the workshop. I can keep going (like a tractor), but there's no acceleration, and the car loses a lot of power. On both occasions, the mechanics investigate the problem, but by the time they get to the bottom of it, the problem has already gone. I was stuck in France for a week due to the most recent incident. Is anyone familiar with this issue and, more importantly, how to resolve it? Your assistance is much appreciated.
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xxxMikexxx
- Posts: 27
- Joined: Mon Feb 02, 2026 8:41 pm
If you have the proper tools—like a main dealer or an MB specialist—to read it, the error code will be stored. Did you buy it from a dealer? How long have you had it? You have the right to refuse the item without cause and receive your money back if it is less than a month old and purchased from a dealer. No questions asked if it's under 6 months old; just send it back and they'll fix it, regardless of warranty.
You have my gratitude. Completed the six-month mark. It was in a French Mercedes dealership, but no one there could locate it. I'm currently on my way back to Scotland, and the car is running like a dream. However, the last time we had this problem, the RAC person indicated that he had just tightened the electrical cables since he felt it was a loose connection. Clearly, there must be something more at play. There is a one-year guarantee on it, and I purchased it from a Merc dealership. I'll give them a chance to figure it out. If they don't, I'll request that they replace the coolant pump and inspect the front vents again, or we can discuss getting a refund. I'll keep you updated, and I'm grateful that you took the time to assist out; the problem is clearly not that prevalent, else I would have expected to see it on the topic.