The 1986 BMW 325e features a 5-speed manual transmission (Getrag 260) paired with the unique "eta" 2.7L inline-6 engine, known for its fuel efficiency and torque. This transmission provides smooth shifting, durable construction, and excellent driving dynamics characteristic of BMW's E30 chassis. Below are key sections covering specifications, operation, maintenance, troubleshooting, and service procedures.
The Getrag 260 5-speed manual transmission is designed for durability and smooth shifting performance.
| Specification | Details |
|---|---|
| Transmission Model | Getrag 260/5 |
| Type | 5-speed manual |
| Gear Ratios | 1st: 3.83, 2nd: 2.20, 3rd: 1.40, 4th: 1.00, 5th: 0.81 |
| Final Drive Ratio | 2.79:1 (standard) |
| Fluid Capacity | 1.2 liters (1.3 quarts) |
| Fluid Type | API GL-4 75W-80 or 80W-90 gear oil |
| Weight | Approximately 35 kg (77 lbs) |
| Shift Pattern | Standard H-pattern with reverse left and up |
Proper shifting technique ensures longevity and optimal performance.
WARNING! Do not rest hand on shift lever while driving as this can cause premature wear.
Proper fluid maintenance is critical for transmission longevity.
CAUTION! Use only GL-4 rated gear oil; GL-5 can damage synchronizers.
The shift linkage connects the shift lever to the transmission selector mechanism.
Components: Shift lever, selector rod, joint assemblies, shift console, bushings.
Adjustment: Ensure proper alignment of shift linkage for precise gear engagement. Worn bushings can cause sloppy shifting. Replacement parts available include delrin bushings for improved shift feel.
The clutch system works in conjunction with the manual transmission.
Tip: Check clutch fluid level regularly in reservoir near brake master cylinder.
Regular maintenance ensures optimal transmission performance.
| Service | Interval | Procedure |
|---|---|---|
| Gear oil change | 30,000 miles | Drain and refill with specified fluid |
| Shift linkage inspection | 15,000 miles | Check for wear in bushings and joints |
| Clutch hydraulic fluid | 2 years | Replace DOT 4 brake fluid |
| Transmission mount inspection | 30,000 miles | Check for cracking or deterioration |
| Driveshaft coupling | 60,000 miles | Inspect guibo for cracks |
Typical problems encountered with the Getrag 260 transmission.
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| Hard to shift when cold | Wrong fluid viscosity | Replace with proper 75W-80 gear oil |
| Grinding during shifts | Worn synchronizers | Rebuild transmission or replace synchronizer rings |
| Vibration in gear | Worn transmission mounts | Replace transmission mounts |
| Clutch drag | Air in hydraulic system | Bleed clutch hydraulic system |
| Noise in neutral | Input shaft bearing wear | Transmission overhaul required |
Basic repair and maintenance procedures for the manual transmission.
WARNING! Use proper jack stands when working under vehicle. Transmission is heavy - use transmission jack for removal.
Additional technical specifications and reference information.