The B47 engine is one of BMW’s most widely used diesels. Introduced in 2014 to replace the troubled N47, it powers models across the range — from the 1 Series hatchback to the 5 Series saloon and SUVs like the X3 and X5. With Euro 6 compliance, improved timing chain design, and a flexible turbocharging setup, the BMW B47 engine was designed for reliability and efficiency.
But like all modern diesels, it isn’t flawless. Timing chains, DPFs, and EGR systems still crop up in garages around the UK. And when problems do arise, repair bills can be daunting. That’s why many drivers and workshops now look for a B47 engine for sale through trusted dismantlers, rather than paying dealer prices.
What makes the B47 different?
- Modular design– the B47 shares architecture with BMW’s petrol B48 and six-cylinder B58, helping reduce production costs and improve consistency.
- Revised timing chain– positioned at the front for easier servicing and designed to avoid the early failures of the N47.
- Turbo options– available as single-turbo units (e.g. B47D20A engine) and twin-turbo versions (B47C20B) for higher output models.
- Euro 6 emissions compliance– fitted with AdBlue and modern DPF systems to meet tough regulations.
Common issues to look out for
Timing chain wear
Although improved, the timing chain can still stretch at high mileage. Regular oil changes are essential to extend life.
EGR cooler problems
The B47 was included in BMW recalls for EGR cooler leaks. Always check recall history before buying a car or engine.
DPF blockages
Short city runs can clog the diesel particulate filter. A motorway run every so often helps burn off deposits.
Turbo wear
Turbochargers can fail on high-mileage or poorly serviced cars. Watch for smoke, whining noises, or loss of boost.
Affordable B47 engines at MT Auto Parts
When the worst happens, replacing the engine through BMW can cost upwards of £7,000–£10,000. That’s why many garages turn to BMW breakers like MT Auto Parts, who supply low-mileage, warrantied units at a fraction of dealer cost.
Here are some real examples currently in stock:
- BMW B47C20B complete engine, 14K miles– supplied with warranty, suitable for F39, F40, F44, F45, F46, F48 models. Listed at only £3,599.99.
- BMW B47C20B complete engine, 50K miles– again with warranty, fits the same range of 1 and 2 Series cars. Available for £3,199.99.
- BMW B47D20A engine (single turbo, 22K miles)– perfect for G01, G30, G31 applications like the 3, 5, and X3 Series. Listed at only £3,099.99.
Each unit is used, tested and sold with a 30 day warranty, giving both garages and private buyers confidence (T&C apply). Mileage is disclosed, and delivery is available nationwide within just 24–48 hours. You are getting almost new engine quality for 50% less.
Why used B47 engines make sense
- Cost savings– often 50% cheaper than buying new.
- OEM quality– these are genuine BMW engines, not aftermarket copies.
- Warranty included– protection against early faults.
- Quick delivery– minimises downtime for garages and drivers.
Final thoughts
The BMW B47 engine has proven itself as a strong, reliable diesel for daily use, but no engine is without weaknesses. When issues do strike, the choice is clear: either pay dealer rates or explore BMW breakers like MT Auto Parts for affordable solutions in the UK.
With options like the B47C20B and B47D20A engines available from MT Auto Parts (And many other BMW engines and parts available) — complete with low miles, warranty and nationwide delivery, BMW owners in the UK can keep their cars running smoothly without the crushing cost of a brand-new replacement.
So if you’re searching for a B47 engine for sale, the smart money is on tested, warrantied units from trusted suppliers. Proof that keeping your BMW on the road doesn’t have to break the bank.
