BMW F30 320d buying guide: what to check before you buy
The F30 320d is one of the most popular used BMWs. This buying guide covers the N47 and B47 engines, gearboxes, xDrive, common issues such as timing chain, EGR and DPF, and what to check.
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The F30 320d is one of the most popular BMWs ever sold. Built from 2012 to 2019, this diesel 3 Series combines strong torque, low fuel consumption and the balanced handling that made the 3 Series famous.
Because so many were sold, there is a wide choice of used cars, from high-mileage company cars to carefully maintained private cars. In this buying guide we explain the engines, gearboxes, common issues and what to check before buying an F30 320d.
Why the F30 320d is popular
The F30 320d offers a combination that suits many drivers:
- Low fuel consumption for its size and performance.
- Strong torque for easy overtaking and motorway driving.
- Comfortable and practical saloon body, also available as the F31 Touring.
- Rear-wheel drive or xDrive.
It was popular with companies and families, so many cars have high mileages from motorway use, which is generally kind to diesel engines.
The chassis is well balanced, with precise steering and a comfortable ride, especially on cars with adaptive suspension. Many owners say the 320d offers the best compromise in the F30 range between running costs and driving pleasure. With an automatic gearbox, it is also relaxed in traffic and quick to overtake on country roads.
F30 320d engines: N47 and B47
The F30 320d used two engine generations:
- N47: used in earlier cars. Some early N47 engines were known for timing chain problems, while later versions were improved.
- B47: introduced during the model's life, generally considered more reliable and refined. Our article on the BMW B47 diesel explains it.
Power was around 184 hp for N47 cars and around 190 hp for B47 cars in many markets, with an efficient version with less power also offered. Check the engine code in the vehicle documents. Our article on BMW timing chain problems explains the N47 issue.
Gearboxes and xDrive
The F30 320d was offered with:
- A six-speed manual gearbox.
- An eight-speed automatic, which is smooth, efficient and very popular.
xDrive all-wheel drive was available on many cars and is useful in winter. Our article on BMW transmission fluid explains automatic gearbox maintenance. On manual cars, check the clutch and dual-mass flywheel. Our article on the BMW dual-mass flywheel explains the symptoms.
F30 320d common issues
Points to check include:
- Timing chain noise on N47 cars, especially a rattle from the rear of the engine on cold start.
- EGR cooler recall: BMW carried out a recall on EGR coolers of some diesel engines. Check whether the work has been done.
- DPF problems on cars used mainly for short trips. Our article on the BMW DPF explains them.
- Swirl flap actuator and intake soot.
- Front suspension bushings, which can cause vibration. Our article on BMW vibration at speed explains this.
- Run-flat tyres on many cars. Our article on BMW run-flat tyres explains the pros and cons.
Equipment and versions
The F30 was offered with many trim lines and options, including Sport, Luxury, Modern and M Sport. Popular options include navigation, Head-Up Display, adaptive LED headlights and the Harman Kardon audio system.
The model was updated around 2015, with revised lights, interior details and the introduction of new engines. Many buyers prefer later cars for their updates. Our article on BMW M vs M Performance vs M Sport explains the M Sport package.
Service history
For a diesel 3 Series, the service history is particularly important:
- Regular oil changes with the correct low-ash diesel oil.
- Records of timing chain work on N47 cars, if done.
- Recall work, such as the EGR cooler.
- Gearbox fluid changes on automatic cars, if done.
- Brake and suspension work.
High mileage is acceptable on a well-maintained diesel, but the records should confirm consistent care. Our guide to buying a high mileage BMW explains how to judge such cars.
Test drive checklist
On the test drive:
- Start the engine cold and listen for rattles.
- Check for smoke under acceleration.
- Test the gearbox for smooth shifts.
- Feel for vibration at motorway speeds and under braking.
- Check for warning messages, including DPF and engine warnings.
- Test the equipment, including iDrive, climate control and driver assistance.
Our complete checklist for buying a used BMW covers other checks.
Is the F30 320d a good buy?
For drivers who cover longer distances, the F30 320d is an excellent used buy, offering comfort, efficiency and driving pleasure. Later B47 cars with complete service history are often the safest choice.
For mostly short trips in town, a petrol model such as the 320i or 330i may suit better. Our article on BMW diesel or petrol explains how to choose.
BMW F30 320d key facts
| Item | Details |
|---|---|
| Production | 2012 to 2019 |
| Body styles | F30 saloon, F31 Touring |
| Engines | N47, later B47 2.0-litre diesel |
| Power | Around 184–190 hp in many markets |
| Gearboxes | 6-speed manual or 8-speed automatic |
| Drive | Rear-wheel drive or xDrive |
| Key checks | Timing chain, EGR recall, DPF, bushings |
Frequently asked questions
Is the F30 320d reliable?
Generally yes, especially later B47 cars. Early N47 cars need timing chain checks.
Which F30 320d engine is best?
Many buyers prefer the later B47 engine for its improved reliability and refinement.
Is the F30 320d good for short trips?
Not ideal. Frequent short trips can clog the DPF. It suits longer journeys best.
How many kilometres can an F30 320d do?
With good maintenance, many cover very high mileages. The service history is key.
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