Engine:
Complete overhaul, diagnosis, tuning, emissions control systems
Transmission:
Manual (Getrag 260/5) and Automatic (ZF 4HP22) service, repair, and diagnosis
Drivetrain:
Driveshaft, differential, axle shafts, CV joints
Suspension:
Front and rear suspension components, alignment, shock absorbers, springs, control arms
Steering:
Power steering system, steering rack, tie rods, steering column
Brakes:
ABS system, brake calipers, rotors, pads, brake lines, master cylinder, parking brake
Electrical System:
Wiring diagrams, fuse box layouts, lighting, ignition system, starting system, charging system, battery
Fuel System:
Fuel injectors, fuel pump, fuel filter, fuel pressure regulator, evaporative emissions control (EVAP)
Cooling System:
Radiator, water pump, thermostat, coolant hoses, heater core
Exhaust System:
Exhaust manifold, catalytic converter, mufflers, exhaust pipes
Bodywork:
Body panels, doors, hood, trunk, trim, glass replacement
Climate Control:
HVAC system, A/C compressor, blower motor, climate control module
Interior:
Seats, dashboard, interior trim, headliner, carpeting
Maintenance:
Routine service intervals, oil changes, filter replacements, spark plug replacement, fluid checks and changes
Troubleshooting:
Diagnostic procedures for common and uncommon issues, fault code interpretation (where applicable)
Repair:
Step-by-step instructions for component removal, installation, and repair for all major systems
Diagnostics:
Engine performance diagnostics, electrical system troubleshooting, ABS fault finding
Specifications:
Torque specifications for all fasteners, diagnostic data, component clearances
Depth:
Detailed, from basic maintenance to complete engine and transmission rebuilds
Level Of Detail:
Professional mechanic level, suitable for DIY enthusiasts and professional shops
Oil Change Interval:
Every 5,000-7,500 miles or 6-12 months, depending on driving conditions
Air Filter Replacement:
Every 15,000-30,000 miles
Spark Plug Replacement:
Every 30,000-60,000 miles (depending on spark plug type, typically copper or platinum)
Coolant Flush:
Every 2-3 years or 30,000-40,000 miles
Engine Oil:
API SG, ACEA A2-96, BMW LL-98 approved. Viscosity: 5W-30, 10W-30, 10W-40, 15W-40 (depending on ambient temperature). Capacity: 5.7 L (6.0 US qt) with filter change.
Coolant:
BMW Blue Antifreeze/Coolant (G48 ethylene glycol based) or equivalent. Mixture: 50/50 with distilled water.
Brake Fluid:
DOT 3 or DOT 4 brake fluid
Power Steering Fluid:
BMW power steering fluid (Pentosin CHF 11S) or equivalent
Transmission Fluid Manual:
API GL-4 75W-90 Synthetic Gear Oil
Transmission Fluid Automatic:
ATF Dexron III or equivalent (ZF Lifeguardfluid 5)
Cooling System:
Plastic coolant expansion tank can become brittle and crack, leading to leaks. Water pump seals can also fail.
Suspension:
Front control arm bushings and ball joints wear out, leading to steering wander and uneven tire wear. Rear subframe bushings can also degrade.
Electrical:
Wire harness chafing, particularly around the engine bay, can cause intermittent electrical faults. ABS sensor failures are also common.
Engine Management:
Mass Air Flow (MAF) sensor and Idle Control Valve (ICV) can become dirty or fail, causing rough idle and poor performance.
Interior:
Headliner fabric sagging, climate control panel illumination failures, and worn seat bolsters are common.
Bmw Legacy:
Known for performance, luxury, and engineering excellence since 1916
E34 Generation:
Introduced in 1987 (Europe) and 1989 (North America), replaced the E28 5 Series. Known for improved aerodynamics, refined interior, and advanced technology for its time.
525I Positioning:
Mid-range 5 Series model, offering a balance of performance and luxury. Known for the smoothness and responsiveness of its inline-six engine.
Production Period:
E34 production: 1987-1996
