Mercedes-Benz Problems

You're correct in thinking the Mercedes would cost more to service and repair, particularly if you use a dealer. Going to an independent service mechanic with experience of Mercedes-Benz cars would save you plenty. The Jeep would be the cheaper of the two in terms of servicing, and of the two you are looking at that's the one I would opt for.

If you want a Benz GLE, and you can afford it, then do it. It's not stupid if it makes you happy. Definitely go for a car that's in stock at a dealership to get the best deal.

There is a problem with the electronics of the car, it could be the ECU or a sensor, and it's causing the car to go into "limp home" mode. By turning the engine off and restarting you are rebooting the computer. Take it to a mechanic and have them hook it up to their diagnostic equipment and they should be able to identify the cause of your problem.

Good for you and thanks for the news. I agree updates should be free, even if car makers argue they have to pay for the data and uploading.

Electrical problems can quickly become costly but you will notice a big step down in comfort and class if you downgrade to a Hyundai. It's a sensible move on the budget front but make sure you understand the implications — take a long test drive in the Accent before you commit.

Probably not a record but encouraging news for our readers who have recently complained about batteries lasting for just a few years.

You could go for a Mercedes-Benz GLC with similar features and save money. My choice — perhaps surprisingly — is the Jeep. Just make sure you find a good dealer.

We often criticise cars for excessive tyre roar on country roads. You're another victim of big wheels and low-profile tyres on a C250, which is the sportier model below the C63 AMG, multiplied by the harshness of runflats. You need to get back to 18-inch rims with higher-profile regular tyres to reduce the road roar, perhaps test driving a basic C200 for a noise test.