2008 MINI GP Problems: 1 Issues Every Owner Should Know
2008 model year · 187+ owner reports · Updated April 2026
According to Au7o's analysis of 187+ owner reports, the 2008 MINI GP has 1 documented known issues, with 1 rated critical. The most serious is Oil Separator / Crankcase Ventilation Valve Failure Causing Oil Consumption (N14/N18) ($250-$600 repair). The most commonly reported issue is Oil Separator / Crankcase Ventilation Valve Failure Causing Oil Consumption (N14/N18) with 187 owner reports. Across all issues, repair costs range from $250 to $600. DIY maintenance guides at au7o.io.
All 1 Known Issues
On the 2007-2014 MINI GP, the N14 and N18 engines fitted to the GP1 and GP2 are well-documented for crankcase ventilation oil separator (CCV) failure, where the plastic separator housing cracks or the internal membrane fails. A failed CCV causes excessive oil to be drawn into the intake manifold and combustion chambers, resulting in visible blue smoke from the exhaust and abnormally high oil consumption between service intervals. MINI issued TSB SI B11 06 11 addressing this concern on N14 and N18 engines.
Common Symptoms
- Blue or grey smoke from exhaust especially on startup
- Oil consumption exceeding 1 quart per 1,000 miles
- Oil residue visible in intake tract or intercooler pipes
- Rough idle due to oil fouling throttle body
- Check engine light with lean or misfire codes
How to Fix
Replace the oil separator/CCV unit (OEM part 11617533400 for N14, 11617588885 for N18). The repair also requires cleaning the intake manifold and throttle body of oil residue. Parts cost $80-$180; total repair including labor typically $250-$600 at an independent specialist.