1991 BMW 3 Series Sedan Third generation Engine Fastener Tightening Specifications
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| Condition | Value |
|---|
| M6 | 7.38 lbf⋅ft |
| M7 | 11.06 lbf⋅ft |
| M8 | 16.23 lbf⋅ft |
| Viscous fan clutch | 29.5 lbf⋅ft |
| M6 | 7.38 lbf⋅ft |
| M7 | 10.33 lbf⋅ft |
| M8 | 14.75 lbf⋅ft |
| First stage | 59 lbf⋅ft |
| See figure 1. | |
| Second stage | slacken |
| Third stage | 36.88 lbf⋅ft |
| Fourth stage | 90° |
| Fifth stage | 90° |
| Sixth stage | Warm-up run |
| Seventh stage | 90° |
| First stage | 22.13 lbf⋅ft |
| Use new screws, and oil the screws. See figure 2. | |
| Second stage | 90° |
| Third stage | 90° |
| M6 | 7.38 lbf⋅ft |
| M7 | 11.06 lbf⋅ft |
| First stage | 3.69 lbf⋅ft |
| Second stage | 14.75 lbf⋅ft |
| Third stage | 70° |
| 316 i with gasoline straight-4 1.6 L 101 HP engine (1990.9–1993.9) | 228.64 lbf⋅ft |
| Replace bolt. | |
| 316 i with gasoline straight-4 1.6 L 98 HP engine (1990.9–1993.9) | 228.64 lbf⋅ft |
| Replace bolt. | |
| 318 i with gasoline straight-4 1.8 L 111 HP engine (1990.12–1993.10) | 228.64 lbf⋅ft |
| Replace bolt. | |
| First stage | 73.76 lbf⋅ft |
| Use new screw. | |
| Second stage | 60° |
| Third stage | 60° |
| Fourth stage | 30° |
| All other modifications | 302.4 lbf⋅ft |
| Replace bolt. | |
| Drive plate | 88.51 lbf⋅ft |
| Replace screws. | |
| 316 i with gasoline straight-4 1.6 L 101 HP engine (1990.9–1993.9) | 88.51 lbf⋅ft |
| Replace screws. | |
| 316 i with gasoline straight-4 1.6 L 98 HP engine (1990.9–1993.9) | 88.51 lbf⋅ft |
| Replace screws. | |
| 318 i with gasoline straight-4 1.8 L 111 HP engine (1990.12–1993.10) | 88.51 lbf⋅ft |
| Replace screws. | |
| All other modifications | 77.44 lbf⋅ft |
| Lightly lubricate the screws thread. | |
| First stage | 14.75 lbf⋅ft |
| Second stage | 50° |
| First stage | 14.75 lbf⋅ft |
| Replace screws. | |
| Second stage | 70° |
| First stage | 14.75 lbf⋅ft |
| Replace screws. | |
| Second stage | 50° |
| M8 | 16.23 lbf⋅ft |
| M10 | 47.94 lbf⋅ft |
| First stage | 3.69 lbf⋅ft |
| Second stage | 14.75 lbf⋅ft |
| Chain tensioner | 51.63 lbf⋅ft |
| M10 | 34.67 lbf⋅ft |
| M6 | 7.38 lbf⋅ft |
| M7 | 11.06 lbf⋅ft |
| M8 | 16.23 lbf⋅ft |
| M12 × 1,5 screws | 18.44 lbf⋅ft |
| Oil filter housing | 18.44 lbf⋅ft |
| M6 screws (class 10.9) | 8.85 lbf⋅ft |
| M6 8.8 | 7.38 lbf⋅ft |
| M8 | 16.23 lbf⋅ft |
| Glow plugs | 14.75 lbf⋅ft |
| Knock sensor | 14.75 lbf⋅ft |
| Lambda sensor | 36.88 lbf⋅ft |
| M6 | 7.38 lbf⋅ft |
| Replace nuts. | |
| M7 | 11.06 lbf⋅ft |
| Replace nuts. | |
| M8 | 16.96 lbf⋅ft |
| Replace nuts. | |
| All other modifications | 14.75 lbf⋅ft |
| Replace nuts. | |
| Spark plugs | 16.96 lbf⋅ft |
Please be noted that all capacities listed here are approximate. Check fluid levels when adding or refilling as recommended in your 1991 BMW 3 Series Sedan user's manual. Keep in mind that all information here is provided “as is” without any warranty of any kind.
Before doing any DIY service please check your insurance policy and BMW warranty policy for your region. In some regions DIY service may invalidate your warranty.
Table of Contents
- Air Conditioning Refrigerant Capacity
- Automatic Transmission Fluid Capacity
- Axle Oil Capacity
- Brake Fluid Capacity
- Cooling Fluid Capacity
- Engine Oil Capacity
- Fluid and Lubricant Specifications
- Manual Transmission Oil Capacity
- Steering Fluid Capacity
- Brake System Specifications
- Chassis Specifications
- Drive Belts Specifications
- Electrical System Specifications
- Emission
- Engine Fastener Tightening Specifications
- Front Suspension Fastener Tightening Specifications
- Rear Suspension Fastener Tightening Specifications
- Transmission Fastener Tightening Specifications
Conquer your fears and never give up!
DIY car service is not as difficult as it looks like and it might save you thousands of dollars per year. It might be even fun and a good thing to do with your kids on a weekend to teach them how basic machinery works. It's really hard to screw something up and damage your car permanently if you use right tools, follow BMW 3 Series Sedan service manual and use right parts and fluids in prescribed amounts. Even modern cars stuffed with electronics can be serviced in your garage or even in your driveway. Changing engine oil, brake fluid, ATF, replacing brake pads, and etc. It's all may be done by yourself in a mater of a couple of hours.
Doing basic service for your 1991 BMW 3 Series Sedan you're not only saving money, but also also improving your technical skills and learning something new.
1991 BMW 3 Series Sedan generations
In 1991 BMW offered 2 generations of the 3 Series Sedan. Engine fastener tightening specifications may vary in different generations. Be sure that you are looking at the rigt modification.