MINI Service & Repair
MINI Cooper Repair and Service in Lewiston, Maine
Portland Performance services and repairs MINI Coopers at 1830 Lisbon St in Lewiston, for owners across Lewiston, Auburn, Augusta, Brunswick, Topsham and the surrounding area.
MINIs share engines and electronics with BMW, so you get the same BMW level diagnostic equipment and experience we use on our BMW work, with genuine parts and no trip to the dealer.
MINI problems we fix every week
- Timing chains: chain, tensioner and guide wear, especially on earlier Cooper S engines
- High pressure fuel pumps: hard starts and long cranking on turbo models
- Oil leaks: valve cover gaskets, oil filter housings and oil pans
- Cooling system: water pumps, thermostat housings and hoses
- Carbon buildup: intake valve cleaning on direct injection engines
- Clutches: clutch and flywheel replacement
- Suspension: control arms, struts and bushings
Models we see most: Cooper, Cooper S, John Cooper Works, Countryman and Clubman
Why MINI owners choose us over the dealer
Diagnosis before parts
We find the actual cause first. Most complex diagnostics and second opinions are resolved in 1 to 3 hours, which costs less than replacing parts on a guess.
OEM or equal quality parts
We prefer genuine OEM parts, or parts that match their quality, along with factory spec fluids, so every repair goes right and lasts.
Photos and video of everything
Every visit includes a free 200+ point digital inspection with photos and video sent to your phone, so you see what we see.
24 month / 24,000 mile warranty
Our workmanship warranty covers most repairs. Ask us about the details for your job.
MINI services
- Factory schedule maintenance with OEM fluids and filters
- Check engine light, electrical and drivability diagnostics
- Oil leaks, cooling system and timing repairs
- Brakes, suspension, steering, tires and alignments
- Transmission, clutch and driveline service and repair
- Engine repair, replacement and builds
- Second opinions on dealer quotes
MINI service FAQ
Will servicing my MINI here affect the factory warranty?
No. You can have maintenance done at any qualified independent shop. We follow the factory schedule, use OEM parts and fluids, and document every visit. Every maintenance and repair visit is also reported to CARFAX, so your service history stays complete for resale, just like a dealer.
My MINI makes a rattle on cold start. Is that serious?
It can be a sign of timing chain wear, which should be checked before it causes engine damage. Bring it in and we will diagnose it.
Book MINI service in Lewiston
Portland Performance, 1830 Lisbon St, Lewiston, ME 04240. Monday to Friday, 8:00 AM to 12:30 PM and 1:30 PM to 5:00 PM (closed for lunch 12:30 to 1:30). Secure 24/7 key drop available.
Schedule online any time, call during business hours, or send a message with questions or photos and we will get back to you.
See all service and repair, or protect the finish with ceramic coating and detailing.

