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haraldfrost5

GLK oil pressure warning and maintenance concerns

My 2013 Mercedes GLK with a gasoline engine is showing an oil pressure warning lamp and sometimes a speedometer warning light at 268362 km. I suspect engine damage, maybe from oil sludge due to a maintenance interval issue. Any thoughts?

Summary of the thread

A 2013 Mercedes GLK owner reported an oil pressure warning lamp and occasional speedometer warning light, suspecting engine damage possibly due to oil sludge from a missed maintenance interval. The issue may stem from using non-genuine oil filters, which can lead to inadequate filtration and sludge formation. A professional inspection and subsequent full service, including an oil and filter change, resolved the warning lights, highlighting the importance of adhering to maintenance schedules and using recommended parts.

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4 comment(s)

BeckSimon

I understand you are experiencing difficulties with your Mercedes GLK. A similar situation occurred with my own GLK, concerning the engine oil. Have you inspected the engine oil itself for any signs of degradation or the presence of foreign matter? Is the oil level within the correct range? An exceeded maintenance interval can indeed lead to oil sludge formation and subsequent contamination of the engine oil, potentially triggering the warning lights you described. Was the correct grade of oil used during the last oil change, and was a genuine Mercedes-Benz oil filter installed?

haraldfrost5 (community.author)

I did check the oil level; it seems okay. I have not really looked closely for sludge, though. I usually go with whatever's recommended at the parts store for the oil and filter, but I do not think it was a Mercedes-Benz oil filter. Could that really make such a difference, or would I have spotted the issue earlier if that was the case?

BeckSimon

The use of a non-genuine oil filter, while seemingly innocuous, can indeed contribute to the problem. The filtration efficiency of aftermarket filters can vary significantly, potentially allowing finer particles to circulate within the engine oil, accelerating wear and contributing to oil sludge. Considering the symptoms you describe, and the mileage of your vehicle, it would be prudent to have a qualified technician inspect the engine. A comprehensive assessment will determine the extent of any potential damage and the necessary remedial actions. I advise you to seek professional assistance without delay.

haraldfrost5 (community.author)

I took it to a workshop, and you were right; it turns out I was overdue for an oil change. They did a full service, new oil and filter. Cost me 165€, but at least the warning lights are gone now. I'll definitely be more careful with the maintenance schedule and use the correct parts next time.

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MERCEDES

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GLK