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

Photo by Afonso Taveira on Unsplash The BMW 1 Series has been through four distinct generations since 2004, and each one tells a slightly different reliability story. The BMW engines and BMW gearboxes fitted to the 1 Series have changed significantly across those years, some combinations are excellent long-term bets, and some are worth knowing about before you hand over any money. This guide goes through each generation clearly. It explains which engines and gearboxes are the most reliable, which ones to be more cautious about, and what makes the difference. If you already own a 1 Series and want to know where you stand, there’s useful information here too. Quick Summary by Generation Generation Years Best engine choice Best gearbox Verdict E87/E81 2004–2011 N52 petrol (120i, 130i) 6-speed Getrag manual Good if petrol; avoid early N47 diesel F20/F21 early 2011–2015 N13 petrol with care 6-speed manual Diesel risk remains; petrol might be better F20/F21 LCI 2015–2019 B48 petrol / B47 die...

  Photo by Mat Kilkeary on Unsplash Ask most BMW owners what they worry about, and the engine comes up first. But the gearbox is just as important, and in some cases, just as expensive when it goes wrong. A failed BMW automatic gearbox can cost more to replace than many second-hand BMWs are worth. Knowing which type is in your car, what its strengths and weaknesses are, and what maintenance it actually needs is the kind of information that saves serious money. BMW has used several different gearbox types across its range over the years. Some are made by ZF, some by Getrag, and one, the SMG, is a category of its own. This guide covers all of them, ranked from most to least reliable based on real-world owner experience and the view from independent BMW specialists in the UK. The Rankings at a Glance Gearbox Type Reliability Found in Getrag Manual 6-speed manual 🟢 Excellent Most non-M BMWs, available across the range ZF 8HP 8-speed automatic 🟢 Very good Most modern BMWs from 2010 o...

  Photo by p - on Unsplash If you’ve spent any time researching used BMWs, you’ve almost certainly come across warnings about timing chains. It’s one of those topics that can make even straightforward buying decisions feel complicated. But not all BMW engines have the same risk, and some of the most-searched engines, like the B48, the B58, and the BMW B47 engines, are significantly more reliable in this area than the engines that gave BMW the reputation in the first place. This guide ranks the most commonly discussed BMW engines from worst to best when it comes to timing chain risk.  What Is a Timing Chain and Why Does It Matter? The timing chain is a metal chain inside the engine that links the BMW crankshaft (which is turned by the pistons) to the camshafts (which open and close the valves). Everything has to happen in a precise sequence. If the chain stretches, slips, or snaps, that sequence breaks down. On most BMW engines, this is an interference engine, which means the...