Mercedes 500 SL 1990-1993 Service Repair Manual

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🏷️ Basic Information Identification Make: Mercedes-Benz Model: 500 SL Body Style: Roadster (R129) Generation: R129 Production Years Covered: 1990, 1991, 1992, 1993 👋 Introduction Market Position Target Audience: Mercedes-Benz enthusiasts,...

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类型: Car

斯库: 378203

标签: 1990 1991 1992 1993 500 SL Car Cars Mercedes Misc

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Description

🏷️ Basic Information

Identification

Make:

Mercedes-Benz

Model:

500 SL

Body Style:

Roadster (R129)

Generation:

Production Years Covered:

1990, 1991, 1992, 1993

👋 Introduction

Market Position

Target Audience:

Mercedes-Benz enthusiasts, independent repair shops, and DIY mechanics working on R129 500 SL models.

Competitive Analysis

Value Proposition:

Provides factory-level diagnostic and repair information essential for maintaining the complexity and performance of these luxury grand tourers, crucial for accurate and efficient repairs.

Key Features

Depth Of Information:

Unrivaled detail for R129 500 SL, covering all factory service procedures and specifications.

📋 Manual Details

Coverage

Manual Type:

Factory Service and Repair Manual

Language:

English

Format:

Downloadable Digital Format (likely PDF)

Page Count:

Estimated 1000+ pages (typical for full factory manuals of this era)

Coverage Areas:

Comprehensive coverage for all specified model years

📖 Manual Coverage

Systems

Engine Mechanical:

Engine assembly, disassembly, overhaul, timing, lubrication, cooling system

Engine Management:

Fuel injection (Bosch KE-Jetronic/LH-Jetronic), ignition system, emissions control, diagnosis, sensor and actuator testing

Transmission:

Automatic transmission (4-speed 722.3/4-speed 722.4 variants common for this period), overhaul, adjustments, fluid service

Drivetrain:

Driveshaft, differential, rear axle assembly, wheel bearings

Brakes:

Hydraulic system, ABS (Anti-lock Braking System), caliper service, rotor replacement, fluid specifications, bleeding procedures

Suspension:

Front and rear suspension components, shock absorbers, springs, control arms, bushings, alignment specifications

Steering:

Power steering system, steering gear, tie rods, lubrication, fluid specifications

Body And Frame:

Body construction, chassis, doors, hood, trunk, convertible top mechanism, interior trim, weatherstripping

Electrical System:

Battery, charging system, starter, lighting, wipers, horn, power accessories (windows, seats, mirrors), central locking

Climate Control:

HVAC system, air conditioning compressor, refrigerant, heater core, blower motor, climate control module

Safety Systems:

Airbag system (SRS), rollover protection system (ARP), seat belt mechanisms

Procedures

Routine Maintenance:

Oil and filter changes, fluid level checks, belt inspections, spark plug replacement, air filter replacement

Diagnostic Troubleshooting:

Fault finding procedures, symptom-based diagnosis, electrical schematic interpretation

Component Removal Installation:

Detailed step-by-step instructions for removing and reinstalling major and minor components

Overhaul Rebuild:

Instructions for complete disassembly and reassembly of engine and transmission components

Adjustments Calibration:

Setting idle speed, ignition timing, transmission detent pressure, brake system adjustments

Technical Depth

Depth:

Expert Level: Covers everything from basic maintenance to complete engine and transmission rebuilds, including detailed electrical schematics and diagnostic procedures.

📊 Manual Specifications

File Details

File Format Primary:

Searchability:

Likely text-searchable if a proper OCR was performed on the original document

Printable:

Yes, printable pages

Print Quality:

Variable, depends on original source quality; expect clear text and diagrams.

Binding Type

Binding Type If Printed:

N/A (Digital Download)

Paper Type If Printed:

N/A (Digital Download)

⚙️ Engine Specifications

Primary Engine

Engine Code:

Engine Type:

5.0L V8 SOHC (later 32-valve DOHC variants were introduced in later R129 models, but early 500 SLs used the SOHC M119.960)

Configuration:

Displacement:

4973 cc (5.0 Liters)

Performance

Horsepower:

Approx. 322 hp @ 5500 rpm (SAE Net)

Torque:

Approx. 336 lb-ft @ 3750 rpm (SAE Net)

Fuel System

Fuel Injection:

Bosch KE-Jetronic (CIS-E) or LH-Jetronic electronic fuel injection

Fuel Type:

Premium Unleaded Gasoline (91+ Octane)

Lubrication

Oil Capacity:

8.0 Liters (8.5 US Quarts)

Recommended Oil Viscosity:

SAE 0W-30 or 5W-30 synthetic (check specific model year for exact recommendations)

Cooling System

Coolant Capacity:

Approx. 10.0 Liters (10.6 US Quarts)

Recommended Coolant:

Mercedes-Benz Approved Coolant (Glysantin G48 or equivalent blue coolant)

🔧 Transmission

Standard Transmission

Type:

4-speed Automatic

Model Codes:

722.3 or 722.4

Fluid Capacity:

Approx. 8.0 Liters (17.6 US Pints) for complete fill (check manual for exact)

Recommended Fluid:

Mercedes-Benz Specification 236.1 or 236.2 ATF (Dexron II equivalent)

Features

Electronic Control:

Early models may have less electronic control than later transmissions; focus on hydraulic and mechanical operation.

📐 Dimensions

Exterior

Length:

Approx. 4475 mm (176.1 inches)

Width:

Approx. 1810 mm (71.3 inches)

Height:

Approx. 1300 mm (51.2 inches)

Wheelbase:

Approx. 2500 mm (98.4 inches)

Weights

Curb Weight:

Approx. 1760 kg (3880 lbs)

Gross Vehicle Weight Rating:

Approx. 2160 kg (4762 lbs)

🛡️ Safety Features

Ratings

Crash Test History:

N/A (Modern standardized crash testing was less prevalent in the early 90s; however, the R129 chassis was engineered for high safety standards of its time).

Passive Features

Airbags:

Driver and passenger airbags (standard)

Rollover Protection:

Automatic rollover protection system (ARP) – pop-up hoops deployed in case of rollover detection

Body Structure:

High-strength steel construction, integrated safety cage

Active Features

Anti-lock Braking System (ABS) standard

Traction Control:

Traction Control System (ASR - Acceleration Slip Regulation) may be optional or standard depending on specific market and configuration.

💡 Technology Features

Infotainment

Audio System:

Original Becker or Clarion premium sound systems, often with cassette player and optional CD changer.

Climate Control Type:

Automatic climate control (ECC - Electronic Climate Control) with adjustable temperature and fan speed.

Driver Assistance

Cruise Control:

Standard electronic cruise control.

Memory Seats:

Power adjustable front seats with memory function.

Connectivity

Remote Keyless Entry:

Optional feature, introduced in later R129 models; early models may have central locking operated by key or interior button.

🔧 Maintenance

Service Intervals

Oil And Filter Change:

Every 10,000 - 15,000 km (6,000 - 10,000 miles) or annually, whichever comes first. Consult the manual for exact intervals.

Transmission Fluid Service:

Every 50,000 - 75,000 km (30,000 - 50,000 miles). Essential for longevity of these automatic transmissions.

Brake Fluid Flush:

Every 2 years, regardless of mileage.

Coolant Change:

Every 2-3 years or as recommended by the manual.

Spark Plug Replacement:

Refer to manual, typically around 50,000 - 100,000 km depending on plug type (e.g., copper vs. platinum/iridium).

Fluid Specifications

Engine Oil:

API SG or higher, ACEA A2-96/B2-96. Recommended viscosity: SAE 0W-30 or 5W-30 Synthetic.

Transmission Fluid:

MB Specification 236.1 or 236.2 (Dexron II compatible)

Brake Fluid:

DOT 4 (FMVSS 116 DOT 4)

Power Steering Fluid:

MB Specification 236.3 (ATF Dexron II compatible)

Known Issues

Wiring Harness Degradation:

Degradation of insulation on engine wiring harnesses is a known issue due to age and heat cycles. Covered in the manual for inspection and repair.

தகM Actuator Problems:

Idle Control Actuator (ICA) can fail, leading to rough idle or stalling. Troubleshooting steps are detailed.

Convertible Top Hydraulics:

Hydraulic system for the convertible top can develop leaks or slow operation. Manual covers troubleshooting and fluid replacement.

ABS Sensor Failure:

ABS wheel speed sensors are prone to failure, affecting ABS and traction control function. Diagnostic procedures included.

📚 Vehicle History

Brand Heritage

Mercedes Benz Legacy:

Mercedes-Benz has a long-standing reputation for engineering excellence, safety, and luxury in its roadsters.

Model Evolution

R129 Introduction:

The R129 SL-Class replaced the highly successful R107 SL. Introduced in 1989 for the 1990 model year, it was a significant step forward in design, safety, and technology.

500 Sl Positioning:

The 500 SL was the flagship model of the early R129 range, featuring the powerful M119 V8 engine and luxurious appointments.

Production

Manufacturing Location:

Bremen, Germany

Production Run:

The R129 SL-Class was produced from 1989 to 2001, with significant updates and model variations throughout its lifespan.

🏆 Awards & Recognition

Recognitions

Car And Driver Ten Best:

The R129 SL-Class was frequently recognized for its engineering and luxury, though specific 'Ten Best' awards for the 1990-1993 500 SL might vary by publication year. It consistently ranked high among luxury sports cars.

Ratings

Safety Engineering:

Highly regarded for its robust safety features, including advanced crumple zones, integrated roll-over protection, and a strong chassis, reflecting Mercedes-Benz's commitment to safety.