Model Code:
E30 (Convertible variant)
Production Years Covered:
1984, 1985, 1986, 1987, 1988, 1989, 1990
Engine Code Common:
M20B27 (for 325 models)
Segment:
Compact luxury sports convertible
Era Reputation:
Renowned for balanced handling, driver engagement, and build quality, representing BMW's 'Ultimate Driving Machine' ethos in a convertible format.
Competitors:
Porsche 944 Cabriolet, Mercedes-Benz 190SL (later models), Alfa Romeo Spider, other premium European convertibles of the era.
Driving Dynamics:
Rear-wheel drive, near 50/50 weight distribution, independent suspension, responsive steering.
Convertible Top:
Fully automatic or manually operated soft top with good weather sealing for its time, featuring a heated rear glass window.
Primary Coverage:
BMW 325i Convertible
Secondary Coverage:
Related 325 models (coupe, sedan, touring may share significant sections)
Estimated Pages:
Hundreds (specific count unavailable from product info, but indicative of comprehensive coverage)
Type:
Factory Service Repair Manual
Powertrain:
Engine mechanicals (M20 inline-6), fuel injection (Bosch Motronic), cooling system, exhaust system, drivetrain (rear-wheel drive), transmission (manual and automatic).
Chassis:
Suspension (front strut assembly, rear semi-trailing arms), steering system (power steering), brakes (front discs, rear drums/discs depending on specific build), wheels and tires.
Electrical:
Wiring diagrams, lighting, ignition system, starter, alternator, battery, instrument cluster, body control modules, convertible top hydraulics/electronics.
Body And Interior:
Convertible top operation and repair, body panels, doors, windows, upholstery, climate control system (HVAC), interior trim.
Routine Maintenance:
Oil changes, filter replacements, spark plug replacement, fluid checks and top-offs, belt inspection and replacement.
Diagnostic Troubleshooting:
Fault code interpretation (if applicable to Bosch Motronic), symptom-based diagnostics for engine, electrical, and mechanical issues.
Component Overhaul And Repair:
Engine rebuild specifications, transmission overhaul, brake system repair, suspension component replacement, convertible top mechanism repair.
Special Tools And Techniques:
Information on required BMW-specific tools or procedures for certain tasks.
Depth:
Comprehensive factory-level repair and diagnostic information, suitable for professional technicians and advanced DIY enthusiasts. Covers full disassembly, repair, and reassembly of major vehicle systems.
Engine Configuration:
Inline 6-cylinder
Displacement:
2.7 Liters (2693 cc)
Bore X Stroke:
84.0 mm x 81.0 mm
Compression Ratio:
9.0:1 (common for US spec M20B27, may vary)
Horsepower Est:
168-170 hp @ 5800-6000 RPM (approx. for US 325i)
Torque Est:
225-230 Nm (approx. 165-170 lb-ft) @ 4000-4500 RPM (approx. for US 325i)
Fuel Delivery:
Bosch L-Jetronic or Motronic fuel injection
Fuel Type:
Unleaded gasoline (Premium)
Wheelbase:
Approx. 2568 mm (101.2 in)
Length:
Approx. 4325 mm (170.3 in)
Width:
Approx. 1675 mm (65.9 in)
Height:
Approx. 1370 mm (53.9 in)
Curb Weight:
Approx. 1350-1450 kg (2976-3197 lbs) depending on transmission and equipment
Gross Vehicle Weight Rating:
Not specified in product info, consult specific vehicle documentation.
Crash Test Performance:
E30 platform received mixed ratings by modern standards due to age; Euro NCAP did not exist in its current form. Specific convertible crash test data for this model is limited.
Brakes:
Front disc brakes, rear disc or drum brakes (depending on model year/spec). ABS was an option on later models.
Airbags:
Driver airbag typically standard from 1987 onwards; passenger airbag very rare for this generation.
Seatbelts:
Three-point front seatbelts, likely lap belts for rear passengers.
Audio System:
Factory fitted Blaupunkt or BMW branded cassette radio with AM/FM tuner. Optional CD changer in later models.
Speakers:
Typically 4-6 speakers depending on trim level.
ABS:
Anti-lock Braking System (ABS) was an optional feature, particularly on later models.
Bluetooth Or Usb:
Not available in original factory configuration. Modern aftermarket head units are commonly installed.
Oil Change Interval:
Typically every 5,000-7,500 miles or 6-12 months (consult original owner's manual for precise intervals).
Timing Belt Replacement:
M20 engine uses a timing belt. Replacement typically recommended every 40,000-60,000 miles or 4-5 years due to material degradation.
Coolant Flush:
Recommended every 2-3 years or as per manufacturer's specification.
Engine Oil Type:
API SG/SH, ACEA A2-96 or similar, viscosity typically 10W-40 or 15W-50 depending on climate. Refer to manual for exact BMW spec (e.g., BMW High Performance Synthetic).
Coolant Type:
Ethylene glycol based antifreeze, typically blue or green. BMW specific coolant or equivalent recommended.
Transmission Fluid Manual:
API GL-4, SAE 75W-90 synthetic gear oil often suitable.
Transmission Fluid Automatic:
Dexron II or III equivalent automatic transmission fluid.
Engine:
Cooling system leaks (hoses, expansion tank), oil leaks from valve cover gasket and oil pan gasket, idle control valve issues, potential head gasket failure if overheated.
Electrical:
Corrosion in fuse box and wiring harnesses, failure of window regulators, convertible top motor/pump issues, dashboard warning light malfunctions.
Chassis:
Bushings wear (control arms, sway bars), rust in common E30 areas (wheel wells, rocker panels, sunroof panel), shock absorber and strut failure.
Bmw Legacy:
BMW's reputation for engineering excellence, sporty driving characteristics, and quality construction.
E30 Generation:
The E30 platform (1982-1994) was a significant model for BMW, known for its robust engineering and classic design. The convertible variant added a distinct lifestyle appeal.
325I Introduction:
The 325i designation marked the higher-performance inline-6 variant of the E30, offering a noticeable step up in power and refinement.
Manufacturing Location:
Germany
Production Period Convertible:
1985/1986 - 1993 (for E30 Convertible platform, encompassing the 325i)
Car And Driver 10Best:
While the E30 platform (sedan/coupe) was frequently honored on Car and Driver's '10Best' list in the mid-80s, specific awards for the convertible variant are less prominent but it contributed to the model's overall strong reputation.
Classic Car Status:
Highly regarded as a modern classic, collectible, and desirable driver's car within the BMW enthusiast community.
