134 Driving and operatingmechanical components and causelocalised overheating and failure ofparts, especially in the enginecompartment.Ensure the radiator core and the areabetween the radiator and intercooler/oil cooler (where installed) is cleaned,to maintain proper cooling air flow.Check the radiator and cooler coresfor blockage (sand, silt etc.).Check the tyre treads.Clean and check the mechanicalparts of the vehicle, particularly thefollowing areas:■ Driveshafts, including sealingbellows■ Front brake calipers, pads anddiscs■ Front suspension■ Clutch fork sealing bellows■ Rear brake calipers, pads anddiscs■ Rear suspension■ Fuel tank and underguard■ Breathers, axles and fuel tank■ Load sensing valve■ Transfer box and underguard■ Engine oil pan and underguardObserve the following:■ Do not spray high-pressure waterdirectly at the vehicle seals■ The wheels must be removed toclean all mud and stones from thebrake calipers and to check brakepad wear■ The areas on the upper side of theunderguards must be cleared ofstones, to prevent damage to theengine oil pan and the fuel tankBrakesThe brake system comprises twoindependent brake circuits.If a brake circuit fails, the vehicle canstill be braked using the other brakecircuit. However, braking effect isachieved only when the brake pedalis depressed firmly. Considerablymore force is needed for this. Thebraking distance is extended. Seekthe assistance of a workshop beforecontinuing your journey.When the engine is not running, thesupport of the brake servo unitdisappears once the brake pedal hasbeen depressed once or twice.Braking effect is not reduced, butbraking requires significantly greaterforce. It is especially important to bearthis in mind when being towed.Control indicator R 3 84.Antilock brake systemAntilock brake system (ABS)prevents the wheels from locking.
