Spark Plugs

• Spark plugs are important for any vehicle, and the Range Rover works best with specific plugs. Range Rovers from 1999 and earlier use Champion RN12YC spark plugs, between a 12 and 11 heat range specification. This is the spark plug recommended in the owner's manual. In newer Range Rover models, a Bosch engine has been installed. It is a good idea to use a platinum Champion spark plug on these models. These boost performance but are a little more expensive than traditional brands.
  
  

Suspension

• The suspensions on Range Rovers are a bit different from other vehicles and have special controls. The height of the suspension can be adjusted up and down according to five different settings, which are activated by a button on the vehicle's dashboard. The programmed settings are extended, high, standard, highway and access. The height can be adjusted as long as the Range Rover is running, the brake is not being depressed, and all the doors of the vehicles are closed. There is an inhibitor button that cancels all height adjustment activities. This is next to the height adjustment button.
  
  

Range Rover Problems

• Air bag issues are one of the most common problems on the Range Rover line of vehicles. The air bags begin to deteriorate around the 100,000-mile or six-year mark. If the Range Rover has been lifted onto a service lift where the suspension has room to swing, it is a possibility that the air bags have been damaged. This is because the air bags pull away from the end caps, causing them to deflate. If they do come away from the end caps, you can attempt to put them back into place. When the car is started, they may inflate again. If not, you will need to take them to a mechanic to get them re-inflated.