Segment:
Compact Executive Hatchback
Target Demographic:
Urban dwellers, young professionals, those seeking premium quality in a smaller package.
Key Competitors:
Volkswagen Golf, Ford Focus, BMW 1 Series (later generations), Audi A3.
Design Philosophy:
Sandwich concept chassis, high safety standards, compact exterior with spacious interior, innovative design.
Unique Selling Points:
Safety (e.g., 'sandwich' floor design for crash energy absorption), Mercedes-Benz build quality and brand prestige in a compact segment, advanced safety features for its time.
Coverage Scope:
All Models & All Repairs A-Z
Region Specific:
Vehicle Specific (Not Generic)
Estimated Page Count:
Comprehensive (Estimated 1000+ pages based on typical Mercedes service manuals)
Type:
Service and Repair Manual
Target Audience:
Professional Technicians & Advanced DIY Enthusiasts
Format Type:
Digital (Likely PDF, often referred to as Electronic Service Manual - ESM)
Searchable:
Yes (Typical for digital service manuals)
Powertrain:
Engine mechanicals, fuel system, ignition system, exhaust system, cooling system, engine management systems (ECU/ECM), lubrication system.
Transmission Drivetrain:
Manual transmission, Automatic transmission (e.g., AUTOTRONIC continuously variable transmission for some models), driveline components (drive shafts, CV joints), clutch operation.
Chassis Suspension:
Front suspension (e.g., McPherson strut), rear suspension (e.g., Torsion beam axle), steering system (power steering), wheel alignment specifications.
Brakes:
Front and rear brake systems (discs/drums), ABS (Anti-lock Braking System), ESP (Electronic Stability Program), brake fluid specifications and bleeding procedures.
Electrical Electronics:
Battery, charging system (alternator), starting system (starter motor), lighting system, wipers and washers, instrument cluster, body control module (BCM), fuse box diagrams, wiring diagrams for all systems.
Body Interior:
Body panel removal and installation, interior trim components, HVAC (Heating, Ventilation, and Air Conditioning) system, door mechanisms, seats, airbags, safety restraint systems.
Diagnostics Troubleshooting:
Diagnostic trouble codes (DTCs) interpretation, troubleshooting flowcharts for common symptoms, component testing procedures, diagnostic tool usage (e.g., STAR DIAGNOSIS).
Routine Maintenance:
Oil and filter changes, air filter replacement, spark plug replacement, fuel filter replacement, brake fluid flush, coolant flush and replacement.
Component Overhaul:
Engine rebuild procedures, transmission overhaul, brake caliper overhaul, steering rack replacement.
Adjustment Calibration:
Throttle body adjustment, idle speed control, ignition timing (if adjustable), sensor calibration.
Installation Replacement:
Component replacement for all major systems, timing belt/chain replacement, suspension component replacement, electrical component replacement.
Special Tools:
Identification and usage of specialized tools required for specific repairs.
Depth Level:
Comprehensive from basic to advanced diagnostics and repair.
Diagnostic Tools:
Detailed procedures for using factory-level diagnostic equipment.
Wiring Schematics:
Detailed, system-specific wiring diagrams with component locations.
Engine Code Common:
M166 Series (e.g., M166.940, M166.960)
Displacement Petrol:
1.4 L (1397cc), 1.6 L (1598cc), 1.9 L (1898cc), 2.1 L (2087cc) (A210 Evolution)
Displacement Diesel:
1.7 L (1689cc) CDI (Common Rail Direct Injection)
Horsepower Range:
Approx. 75 hp to 140 hp (depending on engine variant)
Torque Range:
Approx. 130 Nm to 200 Nm (depending on engine variant)
Fuel Delivery Petrol:
Electronic Fuel Injection (EFI), Multi-point Fuel Injection (MPI)
Fuel System Diesel:
Common Rail Direct Injection (CDI)
Ignition Type:
Electronic ignition, Distributorless ignition system (DIS) in some variants.
Coolant Type:
Mercedes-Benz Approved Antifreeze/Coolant (e.g., G48 or equivalent, typically silicate-free blue/green)
Oil Type:
MB Approval 229.1, 229.3, or 229.5 (e.g., SAE 5W-40, 0W-40, 10W-40 depending on climate and specific engine)
ECU Type:
Bosch Motronic or Siemens systems.
Length:
Approx. 3626 mm (142.8 in)
Width:
Approx. 1719 mm (67.7 in)
Height:
Approx. 1595 mm (62.8 in)
Passenger Volume:
Relatively spacious for its class due to high roofline and 'sandwich' concept.
Cargo Volume:
Variable due to flexible seating; typically around 390 liters with rear seats up.
Curb Weight:
Approx. 1100 - 1300 kg (depending on engine and equipment)
Wheelbase:
Approx. 2373 mm (93.4 in)
Euro Ncap Rating:
4 Stars (at the time of release, considered very good for its class)
Traction Control:
ASR (Acceleration Slip Regulation) - standard on many models, optional or part of ESP.
Stability Control:
ESP (Electronic Stability Program) - optional or standard on higher trims/later models.
Braking Assist:
ABS (Anti-lock Braking System) - standard.
Airbags:
Front airbags, side airbags, optional front/rear head airbags.
Crash Structure:
Advanced 'sandwich' floor concept for enhanced crash protection and internal space utilization.
Oil Change Interval:
Typically every 15,000 km (9,300 miles) or 12 months, whichever comes first (verify with specific manual for exact interval based on oil type and driving conditions).
Air Filter Replacement:
Every 30,000 km (18,600 miles) or as needed based on conditions.
Spark Plug Replacement:
Refer to manual; often around 60,000 km (37,000 miles) for standard plugs, higher for iridium/platinum.
Brake Fluid Change:
Every 2 years, regardless of mileage.
Coolant Capacity:
Approx. 7.5 - 8.0 liters (depending on engine variant).
Brake Fluid Spec:
DOT 4 (or DOT 3 if specified for certain older models, but DOT 4 is generally recommended).
Power Steering Fluid:
MB Approval 236.3 or equivalent hydraulic fluid (e.g., Pentosin CHF 11S in some cases, verify with manual).
Common Wear Items:
Wheel bearings, suspension bushings, exhaust system components, ignition coils, mass airflow sensor (MAF).
Electrical Gremlins:
Corrosion in electrical connectors, faulty window regulators, issues with central locking actuators.
Automatic Transmission Faults:
AUTOTRONIC (CVT) can be prone to electronic control unit failures or wear if not maintained.
Engine Mounts:
Hydraulic engine mounts can degrade over time, leading to increased vibration.
Safety Awards:
Recognized for high safety standards, particularly its unique 'sandwich' concept, contributing to good Euro NCAP ratings.
Consumer Reports Reliability:
Mixed to average ratings for reliability in its early years, often attributed to complex electronics and less robust early build quality compared to later models. Maintenance is key.
Manufacturing Standards:
Built to stringent Mercedes-Benz manufacturing and quality control standards.