BMW M3 F80 Buying Guide
BMW M3 F80 & M4 F82 S55 Buying Guide
The M3 F80 & M4 F82 S55, are a pair of high-performance M-Cars. Equipped with the 3.0-litre twin-turbocharged S55 engine, they offer an exhilarating driving experience, making them a popular choice for enthusiasts. Their sharp handling, strong engine performance, and aggressive styling appeal to those who value performance, particularly on track days.
If you are considering purchasing a used M3 F80 & M4 F82 S55 in the UK, there are several important factors to keep in mind. Whether you plan to use the car on the road or track, understanding what to look for in terms of wear, condition, and performance will help you make an informed decision.
1. Track Usage and Performance History
The M3 F80 & M4 F82 S55 are often used for spirited driving and track days. If the car you are considering has been regularly driven on the track, it’s essential to check for any signs of wear that can occur under such conditions. High-performance driving places additional strain on various components, so ensure the car has been properly maintained and doesn’t show signs of excessive use.
Chassis Play: Track use can accelerate wear on the suspension and chassis. When inspecting the car, look for any unusual play or movement in the chassis, particularly during cornering or braking. This could indicate worn suspension components or other issues related to heavy use. Any knocking or clunking sounds during driving should be investigated.
Tyre Wear: Inner tyre wear is common on cars that have been driven aggressively or used on track. Examine the tyres for uneven wear, particularly on the inner edges. Uneven wear can suggest misalignment, aggressive driving, or track usage. It’s also important to check for any signs of damage, such as cuts or bulges, especially if the tyres have been used extensively on track.
Brake Wear: If the car has seen frequent track days, check the brake pads and discs for signs of wear. High-performance driving requires more braking power, so look for any signs of reduced braking performance, such as squeaking, groaning, or increased stopping distances. Track-focused pads or fluids may have been installed, which should be noted during your inspection.
2. Service History and Maintenance
A well-documented service history is essential when purchasing used M3 F80 & M4 F82 . Regular maintenance and attention to service intervals will ensure that the car is running at its best, particularly with its high-performance engine. The S55 engine is known for its reliability when properly maintained, but any lack of maintenance or missed service appointments could lead to costly repairs down the line.
Oil Changes: Check the service history to confirm that the engine oil and oil filter have been changed at regular intervals (typically every 10,000 miles or annually). If the oil changes have been neglected or extended, it could lead to premature engine wear. For cars that have been tracked, oil changes are likely to be every 6,000 miles or even less.
Brakes and Suspension: Given the car's performance nature, ensure that the brakes and suspension components have been serviced or replaced when necessary. Regular inspection and replacement of brake pads and suspension bushings are crucial for maintaining the car’s handling and braking performance.
Modifications: Many owners of the M3/M4 opt for performance modifications, whether it’s an upgraded exhaust, aftermarket intake, or remapping the ECU. While modifications can improve performance, they can also affect the car’s reliability if not done correctly. Check the vehicle for any modifications, and ensure that they have been installed properly by a reputable company.
Check out our dedicated page for F80 M3 modifications here
Check out our dedicated page for F82 M4 modifications here
3. Engine and Transmission Health
The S55 engine is a high-performance unit, but like any turbocharged engine, it requires proper care to ensure longevity. Be sure to check for any signs of neglect or potential issues that could arise from heavy use, particularly if the car has been used extensively on track.
Oil Leaks: Check the engine for any signs of oil leaks, particularly around the turbochargers, oil pan, and valve covers. Turbocharged engines, such as the S55, can be prone to oil leaks if not properly maintained.
Turbo Health: The S55 engine is known for its strong performance, but excessive use can lead to wear on the turbochargers. Listen for any unusual whistling or whining noises, which could indicate issues with the turbo system. Also, look for any boost leaks or damaged hoses, as these can affect engine performance.
Transmission and Clutch: The M3/M4's are available with either a 6-speed manual gearbox or an 7-speed dual-clutch transmission (DCT). Both transmissions are known for smooth shifting, but heavy track use can put additional strain on them. Ensure that the gearbox shifts smoothly and without hesitation. In the manual version, check the clutch for signs of slipping or wear, particularly if the car has been driven aggressively.
4. General Wear and Tear
Like any high-performance vehicle, the M3 F80 & M4 F82 will show signs of wear over time. Some areas to focus on during your inspection include:
Suspension: Track use can accelerate wear on suspension components such as control arms, bushings, and dampers. If you hear any unusual noises when driving, such as knocking or clunking sounds, this could be a sign of suspension wear. It’s important to check for any loose or worn suspension parts, as they can affect the car’s handling and safety.
Interior Condition: Given the M3/M4's focus on performance, the interior may show signs of wear, particularly if the car has been used for track days. Check the condition of the seats, steering wheel, and gear lever for signs of excessive wear. Track driving can also lead to minor interior damage, so pay attention to any scratches or marks.
Exhaust System: Inspect the exhaust system for any signs of damage, particularly if the car has been modified with an aftermarket exhaust. Check for cracks, rust, or any signs of unusual wear. The exhaust system should also be securely fitted to prevent any rattling or vibrations.
5. Test Drive and Inspection
Once you’ve identified a potential car, it’s essential to take it for a test drive to assess its performance. During the test drive, listen for any unusual noises, such as clunks, squeaks, or rattles, which could indicate issues with the suspension or drivetrain. Pay attention to how the car handles, particularly in terms of steering feel, braking response, and throttle delivery.
It’s also a good idea to have the car inspected by a professional mechanic or BMW specialist before finalising the purchase. A pre-purchase inspection will help identify any hidden issues that may not be immediately obvious during a test drive.
Conclusion
The M3 F80 & M4 F82 are a pair of thrilling performance cars that deliver an engaging driving experience. However, as with any performance-oriented vehicle, it requires careful attention when buying used. Track use and heavy driving can result in additional wear on key components, so it’s important to check for signs of chassis play, inner tyre wear, and suspension damage.
By focusing on the vehicle’s service history, engine health, and potential modifications, you can ensure that the car you purchase will continue to deliver an exceptional driving experience for years to come. Whether you plan to use the car on the road or on the track, proper inspection and maintenance will help keep it performing at its best.