E30 series BMW 3

since 1983-1994 of release

Repair and car operation

- 1. Maintenance instruction
   1.1.2. Overall dimensions
   1.1.3. Place of the driver
   1.1.4. Dashboard
   1.1.5. Keys for the car equipped with an immobilizer
   1.1.6. Window regulators
   1.1.7. Safety cushions
   1.1.8. Board computer
   1.1.9. Indexes
   1.1.10. Voltmeter
   1.1.11. Tachometer
   1.1.12. Counter of the total passable way
   1.1.13. Sound signal
   1.1.14. 3-step automatic transmission
   1.1.15. 4-step automatic transmission
   1.1.16. Mechanical transmission
   1.1.17. Hand brake
   1.1.18. Period of a running in of the car
   1.1.19. Fuel
   1.1.20. Threefold catalytic converter
   1.1.21. Engine oil
   1.1.22. Brakes
   1.1.23. Ruled cargo placements in a luggage carrier
   1.1.24. Start-up of the engine and driving
   1.1.25. Driving receptions
   1.1.26. Trailer towage
   1.1.27. Actions at refusal of start-up of the engine
   1.1.28. A start order from the additional battery
   1.1.29. If the engine decayed during movement
   1.1.30. Actions at an engine overheat
   1.1.31. Actions at a wheel puncture
   1.1.32. Ruled towings
   1.1.33. Pressure check in tires
   1.1.34. Check of a condition and replacement of tires
   1.1.35. Shift of wheels
   1.1.36. Installation of winter tires and chains
   1.1.37. Check of an external condition of the battery
   1.1.38. Battery charging
   1.1.39. Specifications
+ 2. Maintenance
+ 3. Engine
+ 4. Cooling system
+ 5. Heating and ventilation
+ 6. Fuel system
+ 7. Exhaust system
+ 8. Transmissions
+ 9. Coupling
+ 10. Brake system
+ 11. Running gear
+ 12. Body
+ 13. Electric equipment
+ 14. Good advice


1.1.33. Pressure check in tires


Pressure in tires (including a spare wheel) is checked 1 time in 2 weeks, but is not more rare than 1 time a month.

At low pressure in tires controllability the car, profitability worsens, and also the probability of a rupture of the tire because of an overheat increases. Besides, at the lowered pressure consolidation of a board of the tire worsens. At big pressure drop deformation of a wheel and (or) tire stratification is possible.

At too high pressure amortization decreases, controllability worsens, wear in the central part of a protector amplifies, danger of a rupture of a tire increases when driving on the bumpy road.

Observe the following rules:

      – check pressure only in cold tires, not less than 3 hours later after a trip, or after a trip on distance no more than 1,5 km;
      – it is not allowed to determine pressure by appearance of the tire, measure pressure by a manometer. Driving and comfort of a trip worsen even at pressure change only on some tenth shares of the atmosphere;
    – it is forbidden to reduce pressure in tires after a trip.