Positioning:
The Mercedes-Benz 190 (W201) was introduced as Mercedes-Benz's entry-level compact executive car, often referred to as the 'Baby Benz'. It aimed to attract a younger demographic and new customers to the brand while maintaining Mercedes-Benz's reputation for quality, durability, and engineering excellence.
Competitors:
Competed against vehicles like the BMW 3 Series (E30), Audi 80/90, and Volvo 240/740 series. The 190 distinguished itself with its robust build quality, sophisticated multi-link rear suspension, and signature Mercedes-Benz comfort and safety.
Engineering Focus:
Emphasis on safety, durability, and advanced engineering for its class, including extensive use of anti-corrosion treatments and an innovative multi-link rear suspension design.
Reputation:
Known for its solid construction, excellent ride quality, and longevity, contributing to Mercedes-Benz's strong reputation for reliability.
Target Audience:
Do-it-yourself (DIY) owners with basic mechanical knowledge as well as experienced professional mechanics.
Engine:
Complete disassembly, assembly, inspection, and repair procedures for all engine variants, including timing, lubrication, cooling, and fuel systems.
Transmission:
Detailed service and repair for both manual and automatic transmissions, including clutch, gear selection, and fluid management.
Suspension:
Front and rear suspension systems, including struts, springs, control arms, bushings, and steering components.
Brakes:
Front and rear brake systems, including disc/drum configurations, ABS (where applicable), hydraulic lines, master cylinder, and parking brake.
Electrical System:
Comprehensive wiring diagrams, troubleshooting guides, and repair procedures for the entire electrical system, including ignition, lighting, battery, alternator, starter, and accessories.
Fuel System:
Injection systems (e.g., K-Jetronic, KE-Jetronic), fuel pumps, injectors, fuel lines, and emission control components.
Exhaust System:
Exhaust manifold, catalytic converter, mufflers, and pipes.
Body:
Body panels, doors, hood, trunk, windows, interior trim, and anti-corrosion measures.
HVAC:
Heating, ventilation, and air conditioning system diagnosis and repair.
Chassis:
Frame, subframes, and mounting points.
Maintenance:
Regular servicing such as oil changes, filter replacements, fluid checks, spark plug replacement, and tune-ups.
Troubleshooting:
Systematic diagnostic procedures for identifying and resolving common and uncommon issues, including symptom-based troubleshooting.
Repair:
Step-by-step instructions for component removal, repair, and reinstallation for all major vehicle systems.
Rebuilding:
Detailed instructions for engine and transmission overhauls and component rebuilding.
Diagnosis:
Methods for diagnosing electrical faults, engine performance issues, and mechanical problems.
Alignment:
Wheel alignment specifications and procedures.
Torque Specs:
Critical torque specifications for all fasteners.
Depth:
Comprehensive, covering everything from basic fluid changes to complete engine and transmission overhauls. Suitable for both DIY enthusiasts and professional mechanics.
Diagrams Illustrations:
High-quality exploded views, detailed diagrams, and schematics for clarity in repair and assembly.
Manufacturer Specs:
Includes all original manufacturer specifications and technical data.
Engine Variants:
Common engines include M102 (2.0L, 2.3L inline-4 gasoline), M103 (2.6L inline-6 gasoline), and OM601 (2.2L inline-4 diesel).
190E 2.3 (M102.982):
Approx. 130 hp @ 5100 rpm, 190 Nm @ 3500 rpm (Euro Spec)
190E 2.6 (M103.940):
Approx. 160 hp @ 5200 rpm, 228 Nm @ 3500 rpm (Euro Spec)
190D 2.2 (Om601.911):
Approx. 72 hp @ 4400 rpm, 137 Nm @ 2800 rpm
Gasoline Injection:
Bosch K-Jetronic (CIS) or KE-Jetronic (CIS-E) fuel injection systems, depending on model year and market.
Diesel Fuel System:
Bosch inline injection pump.
Coolant Type:
Antifreeze/water mixture (e.g., MB Spec 325.0 or equivalent).
Standard Transmission Type:
4-speed or 5-speed manual transmission.
Optional Transmission Type:
4-speed automatic transmission (e.g., 722.4).
Automatic Features:
Lock-up torque converter in higher gears for improved fuel efficiency.
Automatic Transmission Fluid:
MB Spec 236.2 or Dexron II/III (check owner's manual for exact specification).
Manual Transmission Fluid:
SAE 80 or 80W-90 GL-4 gear oil.
Crash Safety:
Designed with a strong emphasis on safety, including crumple zones, reinforced passenger cell, and advanced passive safety features for its era.
ABS:
Anti-lock Braking System (ABS) was available as an option on many models.
Seatbelts:
Front seatbelt pre-tensioners were introduced in later W201 models.
Airbags:
Driver's side airbag became available as an option later in the production run (post-1988, but relevant for the end of the covered period).
Oil Change Interval:
Typically every 10,000-15,000 km (6,000-9,000 miles) or 12 months, depending on driving conditions and oil used. Consult manual for specifics.
Transmission Fluid Change:
Automatic transmission fluid and filter recommended at 40,000-60,000 km (25,000-37,000 miles) intervals. Manual transmissions often have longer intervals or are considered 'lifetime' fill but periodic checks are advised.
Spark Plug Replacement:
Refer to manual for specific type (e.g., copper, platinum) and interval, often around 30,000-60,000 km.
Engine Oil Type:
API SG or higher, viscosity grades like 0W-40, 5W-40, 5W-30, 10W-40, 10W-30 depending on climate. MB Spec 229.1 or 229.5 are modern equivalents for older specs.
Coolant Capacity:
Approx. 7-9 liters (depends on engine).
Common Wear Items:
Front suspension bushings, control arm bushings, tie rod ends, brake wear, exhaust components, fuel accumulator (K-Jetronic), vacuum leaks, and minor rust in common areas (wheel arches, sills).
Diesel Specific:
Glow plug issues, injection pump seals, and potential for air in fuel lines on early diesels.
Gasoline Specific:
K-Jetronic fuel distributor issues, OVP relay failure (on later models with KE-Jetronic), vacuum hose degradation.
Mercedes Benz Philosophy:
Continuation of Mercedes-Benz's long-standing reputation for engineering excellence, durability, and safety, applied to a more compact segment.
Introduction:
Introduced in 1982 in Europe and 1983 in North America, the W201 (190) was a revolutionary model for Mercedes-Benz, designed to be more accessible than the larger S-Class and E-Class models.
Design Influence:
Designed by Bruno Sacco, it established a new design language for Mercedes-Benz that influenced subsequent models. The multi-link rear suspension was a significant engineering innovation for its time.
Production Period:
1982-1993 (W201 chassis). This manual specifically covers the earlier years: 1984-1988.
Assembly Locations:
Primarily assembled in Germany.
