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Showing posts with the label BMW N47 problems

BMW F10 5 Series Common Problems: What Goes Wrong and When

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  Photo by Alex Mares on Unsplash The F10 5 Series, built from 2010 to 2017, is one of the most common BMWs on UK roads. It's a genuinely good car: well-built, comfortable, capable, and now priced at a level that represents excellent value. But it has accumulated a well-documented list of things that go wrong, and knowing what to expect makes ownership considerably less stressful. Here's the honest version explained in this blog post.  The Problems at a Glance When Problem What to Expect 40–70k N47 diesel timing chain (520d/525d) Chain at the back of the engine. Replacement requires gearbox removal. Budget £1,000–£1,900 for preventive maintenance. If it snaps, the engine is likely written off. 40–80k Electric water pump failure All F10 engines. Fails quietly — temperature warning or cold heater is often the first sign. Replace the thermostat together. £300–£600 fitted. 50–100k Valve cover gasket oil leaks Petrol and diesel. Oil drips down the engine, burning smell when parked....

What Are Common BMW N47 Engine Problems? (And How to Fix Them)

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  Photo by Александр Бендус on Unsplash The BMW N47 engine is a 2.0-litre four-cylinder diesel engine that powered an enormous range of BMWs from 2007 to around 2014. You’ll find it in the 1, 2, 3, 5 Series, X1, and X3 as the 116d, 118d, 120d, 316d, 318d, 320d, 520d, and various other diesel badge variants. On paper, it’s a strong engine. Good fuel economy, decent torque from low revs, and responsive enough for everyday driving. In practice, it has some well-documented problems — one of which is serious enough that it’s changed how many people feel about buying a used BMW diesel from this era entirely. This guide goes through every major issue, explains what causes it, what the warning signs are, and what your options are for fixing it. We’ve drawn on owner forum reports, technical service bulletins, and the experience of BMW independent specialists across the UK. N47 Engine Problems at a Glance  Problem Severity Most Affected Builds Rear timing chain failure Critical — can d...