Segment:
Compact executive sedan/coupe. The E30 3 Series was renowned for its sporty handling and build quality.
Competitors:
Mercedes-Benz 190E, Audi 80/90, Alfa Romeo 75, Ford Sierra, Opel Ascona/Vectra.
Driving Dynamics:
Excellent balance, rear-wheel drive, responsive steering, and a driver-focused cockpit were hallmarks of the E30 generation.
Reliability And Durability:
BMW's reputation for robust engineering contributed to the E30's longevity, making it a popular choice for enthusiasts and daily drivers.
Cost Effectiveness:
Provides detailed procedures to perform DIY maintenance and repairs, significantly reducing labor costs associated with dealership servicing.
Powertrain:
Engine mechanicals (M10 series), fuel injection (Bosch L-Jetronic/Motronic), ignition system, exhaust system, cooling system, lubrication system.
Transmission:
Manual and automatic transmission overhaul and repair, clutch operation, driveshafts, differentials.
Chassis:
Suspension (front struts, rear trailing arms, shock absorbers, springs), steering system (rack and pinion), braking system (front discs, rear drums/discs depending on spec), wheel alignment.
Electrical:
Wiring diagrams, starter system, charging system (alternator), lighting system, instrumentation, fuses and relays, basic diagnosis of electrical faults.
Body And Trim:
Body panel removal and installation, interior trim, door mechanisms, glass, bumpers.
Maintenance:
Scheduled maintenance intervals, oil changes, filter replacements, spark plug replacement, belt adjustments, fluid level checks.
Repair:
Engine component replacement (pistons, bearings, gaskets), fuel injector servicing, brake pad/disc replacement, shock absorber replacement, radiator replacement, starter/alternator repair.
Troubleshooting:
Diagnostic procedures for common starting, running, electrical, and braking issues, fault code interpretation (if applicable to the specific model variant's ECU).
Diagnostics:
Component testing, sensor readings, basic electrical circuit tracing.
Depth:
Comprehensive, covering routine maintenance to complete engine and transmission overhauls. Detailed specifications and torque values are expected.
Engine Type:
Inline-4 Cylinder, Naturally Aspirated
Engine Code E30 316I:
Likely M10B18 (pre-facelift models) or potentially M40B18 for later 1988-1991 models. Verification is crucial.
Displacement:
1.8 Liters (1766 cc or 1795 cc depending on specific M10/M40 variant)
Horsepower:
Approximately 98-105 hp (depending on specific variant and market regulations)
Torque:
Approximately 140-145 Nm (103-107 lb-ft) depending on specific variant and market regulations
Fuel Delivery:
Bosch L-Jetronic or Motronic fuel injection
Fuel Type:
Unleaded Gasoline (RON 91 or higher recommended)
ECU Type:
Bosch Motronic (likely M1.3 or similar)
Transmission Type:
4-speed or 5-speed Manual Transmission
Transmission Type:
3-speed or 4-speed Automatic Transmission (ZF or similar)
Clutch Type:
Single dry plate, hydraulically operated (manual transmission)
Manual Transmission Fluid:
BMW ATF Dextron II or equivalent (check manual for specific part numbers)
Automatic Transmission Fluid:
BMW ATF Dextron II or equivalent (check manual for specific part numbers)
Length:
Approx. 4325 mm (170.3 in)
Width:
Approx. 1677 mm (66.0 in)
Height:
Approx. 1380 mm (54.3 in)
Wheelbase:
Approx. 2570 mm (101.2 in)
Curb Weight:
Approx. 1100-1200 kg (2425-2645 lbs), depending on transmission and options.
Gross Vehicle Weight Rating:
Check vehicle specific plate, typically around 1600 kg.
Crash Test Ratings:
No official standardized ratings from modern agencies (NHTSA/Euro NCAP) for this era. However, the E30 chassis was known for its robust safety cell.
ABS:
Optional on some models, standard on high-performance variants or later production runs. Check specific vehicle.
Limited Slip Differential:
Optional on some models, particularly with M-Sport packages or performance variants.
Seatbelts:
Three-point front seatbelts, two-point rear seatbelts (later models may have three-point rear).
Driver Airbag:
Rarely fitted as standard on early E30 models, became more common on later production years, often as an option.
Reinforced Chassis:
The E30 featured a strong unibody construction with front and rear crumple zones.
Radio System:
Factory fitted AM/FM radio with cassette player. Many units may have been upgraded over time.
Speaker System:
Typically 2-4 speaker system depending on trim level.
Cruise Control:
Optional on many models.
Obc:
On-Board Computer often featured basic functions like fuel consumption, average speed, and time. Prone to failure on these older vehicles.
Oil Change Interval:
Typically every 7,500 - 10,000 miles or 12 months, whichever comes first (refer to manual for specific intervals based on driving conditions).
Timing Belt Replacement:
If equipped with the M40 engine, the timing belt requires replacement approximately every 50,000-60,000 miles or 4-5 years. The M10 engine uses a timing chain.
Coolant Flush:
Every 2-3 years or 30,000 miles. Use BMW-approved coolant.
Engine Oil Specification:
API SG or higher, SAE 10W-40 or 15W-50 (check manual for precise viscosity based on ambient temperature). BMW Longlife-98 or similar specification oils if available.
Engine Oil Capacity:
Approx. 4.5 Liters (with filter change) for M10/M40 engines.
Coolant Type:
BMW Antifreeze/Coolant (G48 or equivalent ethylene glycol-based coolant with corrosion inhibitors).
Brake Fluid:
DOT 3 or DOT 4.
Engine M40:
Timing belt tensioner issues, valve stem seals leading to oil consumption, potential for VANOS issues on later M40 variants if applicable.
Engine M10:
Generally robust, but can suffer from oil leaks (e.g., rear main seal), valve seat wear over high mileage.
Cooling System:
Plastic radiator end tanks can become brittle and leak, thermostat housing leaks, fan clutch failure (if equipped).
Suspension:
Worn control arm bushings, worn shock absorbers, differential mounts can crack.
Electrical:
Corroded wiring connectors, failing fuel pump relays, OBC (On-Board Computer) failures, instrument cluster issues.
Rust:
Common rust points include wheel arches, rocker panels, jacking points, and sunroof drains.
Bmw Philosophy:
BMW's long history of producing driver-oriented vehicles, particularly in the 'Neue Klasse' and its successors, set the stage for the E30.
E30 Launch:
The E30 generation replaced the E21 3 Series and was produced from 1982 to 1994 (coupe/convertible), with sedans produced until 1991 in most markets.
Facelift:
The E30 underwent a significant facelift in late 1987/early 1988, introducing revised bumpers, larger taillights, and interior updates. The 1988-1991 models represent the post-facelift era.
Production Period 316I:
Covered within the 1988-1991 model years mentioned.
Manufacturing Locations:
Primarily Germany (Munich, Dingolfing), but also assembled in other locations worldwide.
Car And Driver 10Best:
The E30 generation was a regular on Car and Driver's 10Best list during its production years, particularly in its higher performance variants.
European Car Of The Year Nominee:
While not a winner for BMW in the specific years of this manual, the E30 was a strong contender and well-regarded in its class across Europe.
Enthusiast Following:
The E30 chassis is highly regarded by automotive enthusiasts for its classic styling, driving dynamics, and relative simplicity, leading to a strong aftermarket support and community.
