Segment:
Luxury Mid-size SUV (Sport Utility Vehicle)
Key Competitors:
BMW X5, Lexus RX, Volvo XC90, Audi Allroad Quattro
Brand Prestige:
Represents Mercedes-Benz's entry into the burgeoning SUV market with its characteristic luxury and engineering.
Platform Sharing:
Built on a unibody chassis, offering a more car-like ride compared to traditional body-on-frame SUVs of the era.
Vehicle Years:
1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
Covered Models:
ML320, ML350, ML500
Estimated Pages:
Extensive (typically 1000+ pages for a complete workshop manual)
Type:
Workshop Service and Repair Manual
Format:
Digital Download (likely PDF)
Engine:
Detailed diagnostics, repair, overhaul, timing, fuel injection, lubrication, cooling, emissions control
Transmission:
Automatic transmission repair, maintenance, diagnostics, fluid service, shift control
Drivetrain:
Four-wheel drive (4MATIC) system, differentials, drive shafts, CV joints
Suspension:
Front and rear suspension components, shock absorbers, springs, control arms, bushings, wheel alignment
Steering:
Power steering system, steering column, rack and pinion, steering linkage
Brakes:
Hydraulic system, ABS (Anti-lock Braking System), ESP (Electronic Stability Program), brake discs, pads, calipers, lines, parking brake
Electrical:
Wiring diagrams, battery, charging system, starter, lighting, instrument cluster, body control module (BCM), fuse/relay locations
HVAC:
Heating, Ventilation, and Air Conditioning system diagnostics and repair, climate control module
Body:
Exterior panels, doors, windows, glass, sunroof, bumpers, interior trim, seats
Chassis:
Frame and body structural components, torque specifications for chassis fasteners
Safety Systems:
Airbag system (SRS), seat belt pre-tensioners, system diagnostics
Maintenance:
Scheduled maintenance, oil changes, filter replacements, fluid checks, tune-ups
Troubleshooting:
Diagnostic charts, fault code interpretation, common problems and solutions
Repair:
Step-by-step repair instructions for all major components and systems
Overhaul:
Complete engine and transmission rebuild procedures
Installation:
Component replacement and installation guidance
Specifications:
Torque values, clearances, fluid capacities, electrical specifications
Wiring Diagrams:
Comprehensive electrical schematics for all systems
Level:
Comprehensive; covers basic maintenance to full engine/transmission rebuilds and complex diagnostics
Ml320 (1997-2002):
3.2L V6 (M112 E32)
Ml350 (2003-2005):
3.7L V6 (M112 E37)
Ml500 (2002-2005):
5.0L V8 (M113 E50)
Ml320 (Approximate):
215 hp @ 5750 rpm, 229 lb-ft @ 3250 rpm
Ml350 (Approximate):
232 hp @ 5750 rpm, 236 lb-ft @ 3500 rpm
Ml500 (Approximate):
288 hp @ 5600 rpm, 325 lb-ft @ 2800 rpm
Type:
Sequential Multi-Port Fuel Injection (MPI)
ECU Model:
ME 2.0 / ME 2.8 / ME 3.7 (depending on year and engine)
NHTSA Front Impact:
5-Star (Model Year dependent, generally good for its time)
IIHS Side Impact:
Good (Model Year dependent)
Stability Control:
Standard ESP (Electronic Stability Program)
Braking System:
Standard ABS (Anti-lock Braking System), Brake Assist (BAS)
Traction Control:
ASR (Acceleration Slip Regulation)
Airbags:
Front dual-stage airbags, optional side airbags
Seat Belts:
Pre-tensioners, force limiters
System:
Optional COMAND (Cockpit Management and Navigation) system, premium sound systems available.
Features:
CD player, cassette player (early models), AM/FM radio, optional CD changer.
Systems:
Parktronic parking assist (optional), rain-sensing wipers (optional).
Features:
Early telematics systems (e.g., Tele Aid) available on some models.
Oil Change:
Typically every 10,000 miles or 12 months (following Flexible Service System - ASSYST), but always consult manual for specifics.
Transmission Fluid:
Recommended service every 40,000-60,000 miles, depending on driving conditions.
Spark Plugs:
Long-life iridium spark plugs, typically replaced around 100,000 miles.
Engine Oil:
SAE 0W-40 (MB Spec 229.5) or SAE 5W-40 (MB Spec 229.51 for diesel if applicable, though unlikely for these gas models)
Coolant:
MB Spec 325.0 or 326.0 (Antifreeze/Coolant concentrate, typically silicate-free)
Common Problems:
Mass airflow sensor (MAF) issues, "Check Engine" light, transmission conductor plate failures, rear main seal leaks, blower motor resistor failure, rust on tailgate and wheel arches.