Diagnostic socket located in the center console behind a covering.
expand_moreIdling speed with manual gearbox
725 tds with diesel straight-6 2.5 L 141 HP engine (1996.4–2001.11)
720–820 rpm720–820 rpm720–820 rpm
728 i,iL with gasoline straight-6 2.8 L 190 HP engine (1995.8–2001.11)
700–800 rpm700–800 rpm700–800 rpm
728 i,iL with gasoline straight-6 2.8 L 190 HP engine (1995.8–2001.11)
700–800 rpm700–800 rpm700–800 rpm
730 d with diesel straight-6 2.9 L 181 HP engine (1998.8–2000.4)
770–870 rpm770–870 rpm770–870 rpm
740 i,iL with gasoline V8 4.4 L 282 HP engine (1996.1–2001.11)
530–630 rpm530–630 rpm530–630 rpm
740 i,iL with gasoline V8 4.4 L 282 HP engine (1996.1–2001.11)
530–630 rpm530–630 rpm530–630 rpm
All other modifications
550–650 rpm550–650 rpm550–650 rpm
expand_moreMinimum engine oil temperature at VET
730 d with diesel straight-6 2.9 L 181 HP engine (1998.8–2000.4)
158°F158°F70°C
All other modifications
176°F176°F80°C
expand_morePetrol exhaust gas values
CO content at increased idling speed
0.2 %0.2 %0.2 %
Increased idling speed
2500–3000 rpm2500–3000 rpm2500–3000 rpm
Lambda value
0.97–1.03 λ0.97–1.03 λ0.97–1.03 λ
Maximum HC content at idling
100 ppm100 ppm100 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 1999 BMW 7 Series 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.
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 7 Series 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 1999 BMW 7 Series you're not only saving money, but also also improving your technical skills and learning something new.