05/06/2026
BMW M4 Track Toy Build
Another long-term customer and good friend has added a new toy to the garage – this BMW M4.
During our initial inspection, we found early signs of oil leakage from both the valve cover assembly and oil sump area. The engine mounts and gearbox mounts were also showing clear signs of ageing and deterioration, so rather than simply replacing worn components, we decided to take the opportunity to refresh and upgrade the car properly.
The work includes:
• Valve cover replacement
• Oil sump leak rectification
• Engine mounts replacement
• Gearbox mounts replacement
• Hardrace suspension and chassis upgrades
• Full inspection and setup before returning the vehicle to the track
Many performance cars reach a stage where maintenance and upgrades should go hand in hand. Addressing issues early not only improves reliability but also restores the driving experience that these cars were designed to deliver.
At 4SRC, while many people know us for Nissan GT-Rs, our workshop regularly works on a wide range of performance and sports cars, from BMW M cars and AMG models to Japanese performance platforms and track-focused builds. Whether it's preventative maintenance, chassis development, carbon fibre upgrades, drivetrain work, or complete track car preparation, we have the experience and facilities to support your project.
A fast car is only as good as its foundation. Reliability, suspension geometry, bushings, mounts and chassis setup are often where the biggest improvements can be found.
More updates on this M4 build coming soon.
Website: www.4src.co.uk
Email: [email protected]
WhatsApp: +44 77177 98433
Office: +44 (0)1925 850176