BMW F80 M3 buying guide: what to check (including the F82 M4)
The F80 M3 and F82 M4 brought turbocharging to the M3 and M4. This buying guide explains the S55 engine, the versions, the known issues, the gearbox choice and the checks to make before you buy.
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This F80 M3 buying guide also covers the F82 M4 coupé and F83 M4 convertible, which share the same engine and chassis. Built from 2014 to 2020, these cars brought turbocharging back to the M3 with the S55 twin-turbo straight-six.
They offer huge torque, strong performance and modern equipment at prices that are now within reach of many enthusiasts. But many cars have been modified or driven hard, so the right checks are important. Here is what you need to know.
The F80 M3 and F82 M4 explained
With the F-generation, BMW split the M3 name: the four-door saloon remained the M3 (F80), while the coupé and convertible became the M4 (F82 and F83). Technically they are very similar, with the same engine, gearboxes and most chassis components.
The S55 engine is a 3.0-litre straight-six with two turbochargers. Compared with the V8 of the previous generation, it delivers much more torque from low revs and better fuel economy, while still revving freely. Lightweight parts such as a carbon fibre roof on the coupé and a carbon fibre propeller shaft helped to control weight.
Our article on BMW engine codes explains how to read names such as S55, and our comparison of the M4 G82 and F82 shows how the generations differ.
Versions and updates
Several versions were offered during production:
- Standard M3 and M4: the base versions with the S55 engine.
- Competition package: more power, revised suspension settings, different wheels and other details. It is one of the most desirable options.
- CS models: more power, lighter parts and sharper settings, built in limited numbers.
- M4 GTS: a very limited track-focused model with water injection and adjustable parts.
- Special editions for specific anniversaries and markets.
A facelift brought updated lights and details. As always, confirm the version with the VIN and production data, especially for rare models.
F80 M3 buying guide: the S55 engine
The S55 is generally considered a strong engine, but several points deserve attention:
- Crank hub: the connection between the crankshaft and its drive gear is a widely discussed topic. Failures are rare on standard cars, but the risk is mainly linked to tuned cars with higher torque. Some owners fit an upgraded hub as prevention.
- Charge pipe: the original plastic pipe between the turbochargers and the intercooler can crack, especially on tuned cars. A crack causes a loss of boost.
- Oil leaks: check the oil filter housing and the area around the oil pan.
- Spark plugs and ignition coils: turbo engines are sensitive to worn plugs, which can cause misfires. Our article on BMW spark plugs and ignition coils explains the intervals.
A cold start should be smooth. Ask for fault code readings and, ideally, a test of the engine under load by a specialist.
Tuned or standard?
Many F80 and F82 cars have been tuned, from simple software changes to bigger turbochargers. A modified car is not automatically a bad car, but it changes the risk:
- Ask for a complete list of modifications, with invoices and the name of the workshop.
- Check whether supporting parts such as the crank hub, charge pipe and cooling were upgraded.
- Consider the effect on warranty, insurance and legality in your country. Modifications must be legal and approved where required.
- Prefer cars that can be returned to standard or that come with the original parts.
When in doubt, a car in standard condition with full BMW service history is usually the safest purchase.
Gearbox, drivetrain and chassis
The F80 M3 and F82 M4 were offered with a six-speed manual gearbox or a seven-speed M DCT dual-clutch gearbox.
- M DCT: check for smooth starts and clean shifts. Rough engagement at low speed can point to software or clutch adaptation issues.
- Manual: check the clutch and listen for noises from the flywheel.
- Differential: the Active M Differential should work quietly. Clunks when turning at low speed are worth checking. Our article on the Active M Differential explains how it works.
- Brakes: cars with carbon ceramic brakes have gold callipers. Replacing these discs is very expensive, so check their condition carefully.
- Suspension: adaptive dampers should change character between modes, and there should be no knocks over bumps.
Service history and condition
Look for a complete service history with oil changes, ideally more frequent than the minimum interval. Check the records of spark plugs, brake fluid and gearbox and differential fluids.
Inspect the body for signs of track use, such as stone chips on the front, worn brake discs and tyres with heavy shoulder wear. Track use is not a problem in itself, but it increases wear. Check the carbon fibre roof and trim for damage, because repairs can be expensive.
A diagnostic scan shows stored faults and the history of warnings. It is one of the best investments before you buy.
Making the right choice
Choose first between the practical M3 saloon and the M4 coupé or convertible. Then decide which version and gearbox you prefer. A well-maintained standard Competition model is often the sweet spot, combining the best settings with reasonable prices.
Use our complete checklist for buying a used BMW M car and have the car inspected by a BMW specialist before you buy.
BMW F80 M3 and F82 M4 key facts
| Item | Details |
|---|---|
| Production | 2014 to 2020 |
| Body styles | F80 M3 saloon, F82 M4 coupé, F83 M4 convertible |
| Engine | S55 3.0-litre twin-turbo straight-six |
| Gearboxes | 6-speed manual or 7-speed M DCT |
| Desirable option | Competition package |
| Known checks | Crank hub on tuned cars, charge pipe, oil leaks |
| Limited models | CS versions and M4 GTS |
Frequently asked questions
Is the F80 M3 reliable?
Standard cars with good maintenance are generally reliable. Most problems are linked to tuning, neglected servicing or hard track use.
Is the S55 crank hub a real problem?
Failures are rare on standard cars. The risk is higher on tuned cars with much more torque, which is why some owners fit an upgraded hub.
What is the difference between the F80 M3 and F82 M4?
The F80 M3 is a four-door saloon and the F82 M4 is a coupé. They share the engine, gearboxes and most of the chassis.
Should I buy a tuned F80 M3?
Only with full documentation of the work, upgraded supporting parts and a legal, approved setup. A standard car is usually the safer choice.
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