Market Segment:
Executive Mid-size Sedan
Key Competitors:
Mercedes-Benz E-Class, Audi A6, Lexus GS, Cadillac CTS, Acura TL.
Bmw Philosophy:
The 525xi embodies BMW's 'Ultimate Driving Machine' philosophy, combining luxury, performance, and advanced technology with the added security of xDrive all-wheel-drive.
Manual Purpose:
This manual is designed to equip technicians with the precise, detailed information required for accurate diagnosis, maintenance, and repair of the E60 525xi, ensuring optimal vehicle performance and longevity.
Engine:
N52B25 inline-6, engine management, fuel injection, ignition, cooling, lubrication, emissions control, timing system (VANOS, Valvetronic).
Transmission:
ZF 6HP19 (6-speed automatic), driveline, xDrive all-wheel-drive system, differentials, driveshafts, transfer case.
Brakes:
Hydraulic brake system, ABS, DSC (Dynamic Stability Control), parking brake, brake fluid specifications.
Suspension Steering:
Front and rear suspension components, steering system (hydraulic power steering), wheel alignment specifications, suspension diagnostics.
Electrical Electronics:
Complete electrical schematics, wiring diagrams, fuses, relays, battery, alternator, starter, lighting, instrument cluster, comfort electronics, GM5 module, EWS (immobilizer), diagnostic connectors (OBD-II).
Body Chassis:
Body panels, doors, hood, trunk, chassis structure, rust prevention, noise/vibration/harshness (NVH) solutions, body repair procedures.
HVAC:
Climate control system, air conditioning (A/C) service, heater core, blower motor, control modules.
Interior:
Seats, airbags, interior trim, safety restraint systems, seat belts, headliner.
Maintenance:
Oil change, filter replacement, spark plug replacement, coolant flush, brake fluid flush, drive belt inspection/replacement, cabin air filter replacement, battery maintenance.
Repair Rebuild:
Engine disassembly/assembly, transmission overhaul, suspension component replacement, brake system repair, electrical component diagnosis and replacement, body panel repair.
Diagnostics:
Troubleshooting guides, diagnostic trouble codes (DTCs) interpretation, live data analysis, common fault diagnosis for engine, transmission, ABS, airbags, and other systems.
Specifications Data:
Torque specifications for all fasteners, fluid capacities, diagnostic parameters, resistance values, component testing procedures.
Depth Level:
Comprehensive factory-level technical information suitable for professional technicians, including detailed diagrams, schematics, and step-by-step instructions.
Engine Type:
Naturally Aspirated Inline 6-cylinder (I6)
Displacement:
2.5 Liters (2497 cc)
Horsepower:
Approx. 215 hp @ 6500 rpm
Torque:
Approx. 214 lb-ft @ 2750 rpm
Fuel Delivery:
Electronic Fuel Injection (EFI) with Direct Ignition system.
Engine Control:
Bosch Motronic ECU (specific designation varies, e.g., ME9.2).
Valvetrain:
Double Overhead Camshafts (DOHC), 24 valves, Valvetronic and Double VANOS (variable valve timing).
NHTSA Front Impact:
5-Star (for applicable model years)
IIHS Side Impact:
Good (for applicable model years)
ABS:
Standard Anti-lock Braking System
Dsc:
Standard Dynamic Stability Control (DSC) with DTC (Dynamic Traction Control).
X Drive:
Intelligent All-Wheel Drive system enhances traction and stability.
Airbags:
Front, side-impact, and head curtain airbags.
Seat Belts:
Active front seat belts with pre-tensioners and force limiters.
System Name:
iDrive (First Generation)
Features:
Central controller for navigation, audio, climate control, and vehicle settings. Available with optional Bluetooth integration and voice control.
Stability Control:
Standard DSC and DTC for enhanced vehicle control.
Cruise Control:
Standard cruise control, optional Active Cruise Control (ACC).
OBD Ii:
Standard OBD-II diagnostic port for fault code retrieval and data monitoring.
Climate Control:
Automatic dual-zone climate control.
Oil Change Interval:
Variable service interval based on oil quality sensor and driving conditions (typically 10,000-15,000 miles or annually).
Spark Plug Interval:
Approx. 60,000 miles (for Long Life Spark Plugs, e.g., NGK PLZFR6A11S).
Brake Fluid Interval:
Every 2 years, regardless of mileage.
Engine Oil Type:
BMW Longlife-01 (LL-01) or Longlife-04 (LL-04) synthetic oil, SAE 5W-30 or 0W-30 recommended.
Engine Oil Capacity:
Approx. 6.5 Liters (6.9 US Quarts)
Coolant Type:
BMW Blue Antifreeze/Coolant (G48 formulation or equivalent).
Valve Cover Gasket Leaks:
Common for N52 engines to develop oil leaks from the valve cover gasket and spark plug well seals.
Oil Pan Gasket Leaks:
Oil pan gasket and O-ring on the oil level sensor can also leak.
Eccentric Shaft Sensor:
Potential issues with the eccentric shaft sensor (ESS) and its connector, affecting Valvetronic operation.
Cooling System:
Water pump (plastic impeller can fail) and thermostat housing leaks are common.
Transmission Issues:
Occasional transmission control module (TCM) or mechatronics issues in the ZF 6HP19. Fluid and filter changes are critical.
