1991 BMW 3 Series Sedan Third generation Emission
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| Condition | Value |
|---|
| Maximum K-value | 2.5 1/m |
| 316 i with gasoline straight-4 1.6 L 101 HP engine (1990.9–1993.9) | 760–840 rpm |
| 316 i with gasoline straight-4 1.6 L 98 HP engine (1990.9–1993.9) | 760–840 rpm |
| 318 i with gasoline straight-4 1.8 L 111 HP engine (1990.12–1993.10) | 760–840 rpm |
| 325 td with diesel straight-6 2.5 L 114 HP engine (1991.9–1998.2) | 720–820 rpm |
| All other modifications | 700–800 rpm |
| Minimum engine oil temperature at VET | 176°F |
| CO content at idling speed | 0.1–0.5 % |
| All BMW gasoline straight-6 2.0 L M50 B20 (206S1) engines | 0.2 % |
| All BMW gasoline straight-6 2.0 L M50 B20 (206S2) engines | 0.2 % |
| All BMW gasoline straight-6 2.5 L M50 B25 (256S1) engines | 0.2 % |
| All BMW gasoline straight-6 2.5 L M50 B25 (256S2) engines | 0.2 % |
| All BMW gasoline straight-6 2.0 L M52 B20 (206S3) engines | 0.2 % |
| All other modifications | 0.3 % |
| Ignition time | -12°00' - before TDC + after TDC |
| No adjustment possible | |
| All BMW gasoline straight-6 2.0 L M50 B20 (206S1) engines | 2500–2800 rpm |
| All BMW gasoline straight-6 2.0 L M50 B20 (206S2) engines | 2500–2800 rpm |
| All BMW gasoline straight-6 2.5 L M50 B25 (256S1) engines | 2500–2800 rpm |
| All BMW gasoline straight-6 2.5 L M50 B25 (256S2) engines | 2500–2800 rpm |
| All BMW gasoline straight-6 2.0 L M52 B20 (206S3) engines | 2500–2800 rpm |
| All other modifications | 2500–3000 rpm |
| Lambda value | 0.97–1.03 λ |
| Maximum HC content at idling | 100 ppm |
To reduce environment impact and pass government inspections keep emission parameters at the level prescribed by BMW.
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
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. Emission may vary in different generations. Be sure that you are looking at the rigt modification.