MT Auto Parts Blog | Expert Tips for BMW enthusiasts on BMW Parts, Accessories, Engines and More

  Photo by Artie Kostenko on Unsplash If you own a BMW diesel with an N47, N57, or N43 engine, the timing chain is the one thing worth paying attention to before anything else goes wrong. It's not a dramatic component. It doesn't usually fail loudly or suddenly. But when it does fail, and on these engines, the risk is real, the consequences are catastrophic. This guide covers what a timing chain replacement costs in the UK in 2025, why the price varies so much between garages, what's actually included in a proper job, and why the difference between acting early and waiting too long can be several thousand pounds. Why BMW's N47, N57 and N43 Engines Have This Problem On most modern engines, the timing chain sits at the front of the engine, accessible without removing the transmission. On the BMW N47, N57, and N43 engines, it's at the back. This is the core reason timing chain work on these engines is more expensive than on most cars. To reach the chain, the transmissi...

  Image: BMW 6 series complete twin turbo, turbocharger at MT Auto Parts A failed turbocharger is one of those repair bills that makes you sit down for a minute. The part itself isn't cheap. The labour to remove and refit it is substantial. And then there's the question every BMW owner ends up asking: should I recondition the old one, buy a used BMW turbocharger , or just go new? The honest answer is that it depends on the age of your car, the cause of the failure, the mileage on the engine, and how long you plan to keep the vehicle. This guide breaks all of that down in plain English so you can make the right call rather than the expensive one. First: Why Do BMW Turbos Fail? Before deciding what to do with a failed turbocharger, it's worth understanding why it failed. Because if you replace it without addressing the underlying cause, the replacement will go the same way, sometimes within weeks. The vast majority of BMW turbocharger failures come down to one of three thing...

Image: BMW B47D20B complete engine with just 94K miles for G01, G02, G20, G30 models The definitive guide for BMW enthusiasts — when to fix it, when to find a replacement, and how to buy engine parts smarter. There comes a moment every BMW owner dreads. A knocking from somewhere deep beneath the bonnet. A plume of blue smoke is trailing behind you on the motorway. The temperature gauge is creeping towards the red. Your stomach drops, and a single question forms: how bad is this, really? It is a question that deserves a straight answer. Not a sales pitch, not vague reassurance, and certainly not a guess. Because when it comes to a BMW engine, the difference between a targeted repair, a full rebuild, and a like-for-like replacement can be tens of thousands of pounds. Getting it right matters enormously. At MT Auto Parts, we live and breathe BMW engines every single day. We are a family-run specialist based in Thurnscoe, South Yorkshire, focused exclusively on F, G, and U-generation BMWs...