Positioning:
The Mercedes-Benz W124 chassis (and its Cabriolet variant) represents the pinnacle of build quality and engineering for its era, often referred to as the 'last of the over-engineered' Mercedes. The E320 Cabriolet was a luxury grand tourer.
Competitors:
Competed with other high-end convertible luxury vehicles such as the BMW 8 Series Convertible, Lexus SC convertible variants, and high-trim European sedans converted to convertibles.
Vehicle Highlights:
Exceptional build quality, robust M104 inline-six engine, comfortable ride, refined interior, sophisticated convertible top mechanism, advanced safety features for its time.
Mechanical Systems:
Engine, Fuel System, Cooling System, Exhaust System, Transmission (Automatic), Drivetrain, Suspension, Steering, Brakes (ABS), Climate Control
Electrical Systems:
Engine Control Unit (ECU), Ignition System, Lighting, Instruments, Power Windows, Power Locks, Convertible Top Mechanism, Audio System, Diagnostics (OBD-I/DAS)
Maintenance:
Routine service, fluid changes, filter replacements, lubrication, belt inspection/replacement
Repair Diagnostics:
Engine diagnostics, fuel injection troubleshooting, electrical fault finding, transmission overhaul, suspension component replacement, brake system repair, convertible top system diagnosis and repair
Depth:
Comprehensive: From basic adjustments and fluid services to complete engine and transmission overhauls, electrical system troubleshooting, and bodywork repairs. Includes diagnostic procedures and specifications.
Engine Type:
3.2L Inline 6-Cylinder DOHC 24-Valve
Horsepower:
Approx. 217 hp @ 5500 rpm
Torque:
Approx. 228 lb-ft @ 3750 rpm
Injection System:
Bosch LH-Jetronic Fuel Injection
Fuel Type:
Premium Unleaded Gasoline (91 octane or higher recommended)
Bore X Stroke:
89.9 mm x 84.0 mm
Compression Ratio:
10.0:1
Type:
4-Speed Automatic Transmission (722.3xx series)
Type:
N/A for this specific model variant (though other W124 models offered 5-speed manuals or automatics)
Torque Converter Lock-Up:
Yes
Transmission Fluid Type:
MB 236.6 Specification Automatic Transmission Fluid (e.g., Pentosin ATF-1 or equivalent)
Length:
Approx. 4750 mm (187.0 in)
Width:
Approx. 1740 mm (68.5 in)
Height:
Approx. 1390 mm (54.7 in)
Wheelbase:
Approx. 2715 mm (106.9 in)
Curb Weight:
Approx. 1750 kg (3858 lbs)
Crash Test Data:
While specific official NHTSA/Euro NCAP ratings for the 1993-1995 Cabriolet may not be readily available in modern formats, the W124 chassis was renowned for its robust safety structure and advanced passive safety features for its era.
Braking System:
Anti-lock Braking System (ABS) standard
Traction Control:
Optional (ASR - Acceleration Skid Control)
Airbags:
Driver's airbag standard, optional passenger airbag
Seatbelts:
Pretensioner seatbelts, rear seat belt reminders
Rollover Protection:
Integrated roll-over protection system (pop-up or fixed hoops behind rear seats, depending on specific market/configuration, though often passive structural reinforcement)
Audio System:
Mercedes-Benz premium sound system, often with cassette player and optional CD changer in trunk. Basic AM/FM radio.
Climate Control:
Automatic Climate Control (ACC) standard, featuring electronic temperature and air distribution control.
Cruise Control:
Standard electronic cruise control
Diagnostic System:
OBD-I (On-Board Diagnostics) port, requiring proprietary Mercedes-Benz diagnostic tools (like DAS - Diagnostic Analysis System) for advanced troubleshooting.
Oil Change Interval:
Typically every 7,500-10,000 miles (12,000-15,000 km) or annually, whichever comes first, depending on driving conditions.
Major Service Interval:
Comprehensive checks and component replacements (e.g., spark plugs, belts, coolant) typically at 30,000-60,000 mile intervals.
Engine Oil Type:
API SJ or higher, ACEA A2/A3, SAE 0W-40 or 5W-40 (or 10W-40 depending on climate and manufacturer recommendation at the time). Consult manual for exact MB specifications.
Coolant Type:
Mercedes-Benz Approved Antifreeze/Coolant (MB-Approval 325.0 or 326.0), typically a silicate-free long-life type, mixed 50/50 with distilled water.
Brake Fluid Type:
DOT 4 (ISO 4925 Class 4)
Common Problems Electrical:
Wiper park switch failure, blower motor resistor failure, headlight switch issues, wiring harness degradation (especially in engine bay due to heat).
Common Problems Mechanical:
Oil leaks (valve cover gaskets, oil pan gaskets), vacuum line degradation, serpentine belt tensioner wear, convertible top hydraulic leaks and motor issues, OVP relay failure (if equipped), idle control valve issues.
Common Problems Body:
Rust (especially around wheel arches, rocker panels, and sunroof drains if applicable), convertible top fabric wear/fading, weather stripping degradation.
Oil Filter Part Number Example:
Mann-Filter HU 719/4x, Mahle OX 106, Mercedes-Benz A0001802209 (specifics may vary, always cross-reference)
Manufacturer History:
Mercedes-Benz, a marque synonymous with luxury, engineering, and durability since its inception.
W124 Platform:
The W124 chassis (introduced in 1984) was the third generation of the mid-size Mercedes-Benz executive car. The Cabriolet (A124) was introduced in 1991 as the ultimate expression of open-top motoring within the W124 family.
Production Years Cabriolet:
1991-1993 (as 300CE-24 Cabriolet), 1993-1997 (as E320 Cabriolet/E320 Coupé)
Production Years Specific:
1993-1995 (covered by this manual)
Manufacturing Location:
Germany
