2003 Mini Cooper service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.
Built for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and use wiring diagrams and system sections to diagnose problems faster.
What’s included
- Step-by-step repair procedures and service information
- Specifications and reference data (where provided)
- Electrical coverage with wiring diagrams
- Coverage across key systems: engine, transmission, brakes, steering, suspension, HVAC, and more
Trims covered
- Chili Hatchback 2-Door
- S Hot Chili Hatchback 2-Door
- Salt Hatchback 2-Door
- S Salt Hatchback 2-Door
- S Chili Hatchback 2-Door
- S Hatchback 2-Door
- Base Hatchback 2-Door
- Pepper Hatchback 2-Door
Engines covered
- 1.6L 1600CC l4 GAS SOHC Naturally Aspirated
- 1.6L 1597CC 98Cu. In. l4 GAS SOHC Supercharged
- 1.6L 1600CC l4 GAS SOHC Supercharged
Index / Table of contents
- Body
- Brakes
- Chassis Electrical
- Driveline
- Engine Cooling
- Engine Electrical
- Engine Mechanical
- Engine Performance & Emission Controls
- Fuel System
- General Information & Identification
- Heating, Ventilation, & Air Conditioning
- Hybrid & Electric Vehicle Systems
- Steering
- Suspension
- Transmission, Clutch, & Transfer Case
- Wiring Diagrams
BMW of North America, LLC (BMW) is recalling certain model year 2002-2005 MINI Cooper and Cooper S vehicles and 2005 Cooper and Cooper S Convertible vehicles. The affected vehicles may experience tem
If the vehicle experiences a loss of power steering assist, extra steering effort will be required a
MINI will notify owners, and dealers will inspect the electro-hydraulic power steering system, repla
K2 MOTOR IS RECALLING 1,921 AFTERMARKET HEADLAMPS OF VARIOUS MODELS SOLD FOR USE ON THE ABOVE LISTED VEHICLES. THESE HEADLAMPS ARE MISSING THE AMBER SIDE REFLEX REFLECTOR WHICH FAILS TO CONFORM WITH
WITHOUT THE AMBER SIDE REFLEX REFLECTORS, THE LIGHTING VISIBILITY MAY BE AFFECTED, POSSIBLY RESULTIN
K2 MOTOR WILL NOTIFY OWNERS AND OFFER A FULL REFUND. THE RECALL BEGAN ON DECEMEBER 17, 2008. OWNER
DOPE, INC. IS RECALLING 42,540 COMBINATION CORNER AND BUMPER LAMP ASSEMBLIES OF VARIOUS PART NUMBERS SOLD FOR USE AS AFTERMARKET EQUIPMENT FOR VARIOUS PASSENGER VEHICLES. THESE HEADLAMPS FAIL TO CONF
DECREASED LIGHTING VISIBILITY MAY RESULT IN A VEHICLE CRASH.
DOPE, INC. WILL NOTIFY OWNERS AND OFFER A FULL REFUND FOR THE NONCOMPLIANT COMBINATION LAMPS. THE S
ON CERTAIN VEHICLES, THE LOWER SCREW CONNECTION OF THE REAR STRUTS TO THE CHASSIS MAY FAIL. THE HEAD (TOP) OF THE SCREW SECURING THIS CONNECTION MAY BREAK. THE REMAINING PORTION OF THE SCREW WILL ST
IF LEFT UNATTENDED OVER A PERIOD OF TIME, AND DEPENDING ON DRIVING CONDITIONS, THE REMAINING PORTION
DEALERS WILL REPLACE THE LOWER SCREW CONNECTION OF THE REAR STRUTS. OWNER NOTIFICATION BEGAN APRIL
Cavity protection applied to underside of the hood is leaking out onto the wheel arch trim and grille.
MINI: FAULTY SOFTWARE FOR THE TANK VENTILATION CONTROL DISPLAYS ENGINE THROTTLE REACTION WHEN TEMPERATURE IS HIGH OUTSIDE, AND MORE OBVIOUS IF THE TANK IS ONLY PARTLY FILLED. *MA
MINI: FAULTY SOFTWARE CAUSES THE CHECK CONTROL AND ENGINE POWER REDUCED LIGHT TO APPEAR. *MA
MINI: BECAUSE OF THE DME SOFTWARE, AND A DAMAGED CLUTCH, THE DRIVETRAIN MALFUNCTION CHECK MESSAGE APPEAR. *MA
MINI: DUE TO FAULTY DME SOFTWARE, THE SERVICE ENGINE LIGHTS COMES ON, INCLUDING THE CHECK CONTROL MESSAGE FOR MOTOR FORCE DECREASE. *MA
MINI: DIFFERENT FAULTS ACTIVATES ENGINE MALFUNCTION AND OIL WARNING. *MA
MINI: A MECHANICAL FAILURE AND DME SOFTWARE ERROR OF THE VANOS ACTUATORS CAUSE THE ENGINE TO RUN ROUGH WHICH ACTIVATES THE MALFUNCTION WARNING LIGHT. *MA
MINI: MODELS R50, R52, AND R53 WITH THE ELECTRO-HYDRAULIC POWER-ASSIST STEERING PUMP AND COOLING FANS WILL HAVE AN LIMITED WARRANTY EXTENSION TO 13 YEARS/150,000 MILES. *TA
Showing the 8 most recent of 36 technical service bulletins on file with NHTSA.
CAR IMPACTED THE REAR END OF A JEEP AT LOW RATE OF SPEED (WAS BRAKING TO AVOID CRASH IN THE FRONT). UPON IMPACT THE CAR BURST INTO FLAMES. THE AIR BAG DEPLOYED. LUCKILY THE OCCUPANT OF THE VEHICLE WAS
TL*- THE CONTACT'S VEHICLE WAS INVOLVED IN A CRASH ON 12-28-06 WHILE DRIVING AT 55 MPH, AND THE AIR BAGS DID NOT DEPLOY. THE CONTACT'S VEHICLE WAS HIT ON THE DRIVER'S SIDE, THE CAR THEN SPUN, AND HI
THE CAR STALLS(REDUCES SPEED 0-10MPH) IT MAY SHUT COMPLETELY DOWN AT TIMES THIS HAS BEEN THE SAME CONSISTENT PROBLEM SINCE DATE OF PURCHASE THE USED CAR DEALERSHIP HAS BEEN INFORMED OF THIS PROBLE
TL* THE CONTACT OWNED A 2003 MINI COOPER. WHILE THE VEHICLE WAS PARKED IN THE PARKING LOT, THE NEIGHBORS NOTICED THAT IT CAUGHT FIRE AND CALLED THE FIRE DEPARTMENT. THE POLICE ARRIVED AND FILED A REPO
LOST POWER STEERING WITH BURNING SMELL AND LOTS OF SMOKE. AS EVIDENCED ON THE ATTACHED DOCUMENT, THE ENGINE WIRING HARNESS WAS BURNT. THE CAR COULD HAVE LOST ALL POWER. THE REPAIR BILL WAS $4097.91. I
Showing the 5 most serious of 388 complaints filed with NHTSA.
