Credov's researched list of the 2 faults the Mercedes-Benz GLK X204 is known for (2005–2015), 2 of them serious or costly. Each one says what to look for when you check the car, so you can spot it before you buy. Not every car has these faults: they are the ones worth checking on this model.
What to look for: Look at the back of the engine near the gearbox for fresh oil, and ask for the tensioner seal recall record.
Why it matters: Oil loss from the tensioner can stall the engine and is a fire risk per the recall notice; loss of tensioner preload also accelerates chain wear on an engine whose chain replacement is labour-heavy.
What to look for: Look behind the rear wheels with a torch for flaking, bubbling or holes in the rear subframe, especially at seams.
Why it matters: Structural corrosion around rear suspension mounting points is a safety and roadworthiness question that needs assessing before you retail the car, and a subframe replacement is a major job - Mercedes-Benz USA's own 20-year extension shows the weight the manufacturer puts on it.
Got a question about a Mercedes-Benz GLK X204? Ask Credov: a noise, a warning light, a part or how to fix it.
On top of the faults above, every Credov inspection covers the basics: fuel smell, leaks or filler rust, engine oil leaks, power steering fluid leak, drive belt cracks or squeal, rust underneath: chassis and mounts, engine mounts, engine oil level and colour, coolant level, colour and leaks, head gasket failure signs, cold start: rattle, knock or smoke, rough or hunting idle, engine running hot on gauge, gearbox or diff oil leak, swapped gearbox without lvv and more.
Researched by Credov from manufacturer recalls and service bulletins, owner reports and workshop sources. Repair prices are typical ranges, not quotes. See also fault codes and repair costs.