Which BMW cars have the N47 engine?
The BMW N47 engine was found in the 1 series, 3 series and 5 series including the E87 LCI and E81, E82 and E88, E9X LCI, E60/E61 LCI and F10/F11 models. Production of the N47 common rail diesel engine began in 2007. The BMW N47 diesel engine, found in models such as the 3 Series, 5 Series, and 1 Series from around 2007 to 2014, is renowned for its efficiency but plagued by specific weaknesses. The most infamous is the timing chain system, which is rear-mounted on the engine block.The BMW N47 and N47TU are both 2. N47TU (Technical Update) introduced several improvements over the original N47. Key Differences Between N47 and N47TU: 1. Production Start Date: • The N47 was produced from 2007 to around very end of year 2009 (rare occasions early 2010).The M57 (1998-2013) is the most reliable BMW diesel engine, followed by the modern B47 (2014-present). Avoid the N47 (2007-2014) due to timing chain failures unless replaced, and approach the N57 (2008-2020) with caution due to rear-mounted timing chain replacement costs exceeding £2,000.N47 engines are used for a range of different BMW models – including BMW 116d, 118d, 120d, 123d, 316d, 318d, 320d, 520d, 525d, X1 18d, X3 18d, X5 25d, X6 30d, 730d, and various other models. The N47 engine you need is dictated by the year and model of your BMW.
Is the N47 BMW engine good?
The N47 engine family is prone to excessive timing chain wear and premature failure. Rattling noise from the rear of the engine is indicative of the condition. Models from this era suffer from a specific problem, the N47 engine has a weakness; basically the power plant is prone to excessive timing chain wear. Throughout 2013 and 2014 BMW owners have reported numerous cases of engine failures, many of which led to terminal decline.If you drive a BMW with the N47 engine and hear a metallic rattle on cold starts or when idling, your timing chain might be on its way out. This engine is known for early timing chain wear, particularly on models between 2007 and 2015, and waiting too long can lead to catastrophic engine failure.The N47 had the timing chain placed at the rear of the engine as BMW felt that access to it would not be needed for the life of the vehicle. BMW usually consider lifetime to mean 100,000 miles. Replacement of the timing chain on the 1 series, 3 series and 5 series engines normally require removal of the engine.The N47 engine, used in BMWs from 2007 to 2014, is notorious for timing chain failures due to premature wear, often necessitating a complete engine breakdown as the chain is located at the rear of the engine.
What engine replaced the N47?
The BMW B47 is a 1,995cc inline-4 turbocharged diesel engine first introduced in 2014. It belongs to BMW’s modular engine family (alongside the B38, B48, and B57) and was designed to replace the ageing N47. The B58 engine has earned a stellar reputation since its 2015 introduction. Unlike earlier BMW turbocharged engines like the N54 and N55, the B58 resolved many chronic reliability issues while delivering smooth, responsive power.Overall, the B47 has proven to be a dependable engine when maintained properly. By relocating the timing chain to the front of the engine, BMW made it both more durable and easier to service compared to the N47.If reliability, lower failure risk, and cheaper servicing are priorities, the better choice is the M47 or its later version, the M47N/M47N2. If you care about better performance, quieter operation, and modern technology, you can go for the N47 – but be prepared for possible timing chain failures and high repair costs.Overview of the BMW N47 Engine Notable for its aluminum crankcase, the engine is lighter and more efficient than its predecessor. It features a double overhead camshaft (DOHC) design and employs common-rail direct fuel injection and a turbocharger to enhance performance and reduce emissions.What is the main difference between the B47 and N47 engines? The main difference is that the B47 is a newer, more advanced engine with improved fuel efficiency, less turbo lag, and fewer common issues, especially in terms of timing chain failures compared to the N47.
Which N47 engine fails?
The issue predominantly affects early production N47 engines manufactured before 2008, though later variants remain susceptible. Failure typically occurs between 70,000 and 150,000 miles, regardless of maintenance history, suggesting fundamental design weaknesses rather than purely maintenance-related problems. The major weak point of the N47 engine is the timing chain. It should be replaced early to avoid engine damage. The chain’s role is to synchronize the pistons and valves. If it breaks, valves collide with pistons, causing immediate engine damage.If you drive a BMW with the N47 engine and hear a metallic rattle on cold starts or when idling, your timing chain might be on its way out. This engine is known for early timing chain wear, particularly on models between 2007 and 2015, and waiting too long can lead to catastrophic engine failure.
What year did BMW stop using N47?
Production Start Date: • The N47 was produced from 2007 to around very end of year 2009 (rare occasions early 2010). The N47TU (Technical Update) was introduced in 2010 and continued until 2014 before being replaced by the B47. The M47 is an older-generation engine, simpler and more reliable, with a front-mounted timing chain. It is a great choice for those who value reliability and want to avoid costly repairs. The N47 is more dynamic, more fuel-efficient, and more modern, but unfortunately less reliable due to its rear-mounted timing chain.The B47 was built to improve on several known issues of its predecessor, the BMW N47. Key upgrades include: Revised timing chain positioning and durability (no more rear-of-engine design flaws) Euro 6 emissions compliance with reduced NOx and particulate levels.
Which is better N47 or B47 engine?
What is the main difference between the B47 and N47 engines? The main difference is that the B47 is a newer, more advanced engine with improved fuel efficiency, less turbo lag, and fewer common issues, especially in terms of timing chain failures compared to the N47. Generally speaking, the N47 is a pretty great engine. Decent performance with loads of torque available low in the rev range. People will say that the N47 is the worst BMW engine ever due to the timing chain issue .If reliability, lower failure risk, and cheaper servicing are priorities, the better choice is the M47 or its later version, the M47N/M47N2. If you care about better performance, quieter operation, and modern technology, you can go for the N47 – but be prepared for possible timing chain failures and high repair costs.
What is the weakness of the N47?
N47 engine reliability problems One of the most notorious problems with the N47 engine is timing chain failure . Located at the rear of the engine, it is difficult to access, making repairs particularly expensive. A rattling noise coming from the rear of the engine is often an early sign of premature wear. Smooth, strong and efficient, it’s a favourite with drivers who cover plenty of motorway miles. But as good as it is, the N57 isn’t bulletproof. Timing chain failures and other major issues can lead to complete engine failure and when that happens, replacement is often the only way forward.The N47 is incredibly popular, primarily because BMW installed this diesel engine into so many models. Power varied from 97hp to over 215 and it came in two cylinder capacities but is essentially the same block.The BMW N47 engine is known for serious timing chain issues that can lead to catastrophic failure if left unresolved.The only reliability difference between them n57 u can hear the chain rattling , while n47 suddenly can broke and u have to prevent trouble. Louis Geldy Geldart yes it does.