where my speed dial is there is ! symbol on coming back from a show a red light kept coming on and then going off what does this mean

andrea, July 2009

The exclamation mark symbol is the brake differential pressure warning light. The brake system is split (different ways -"L". "V" depending on which model). This warning light comes on if a difference in pressure is detected between the 2 parts of the system. This could be because of a leak. If you have air over hydraulic brakes, there will be 2 brake master cylinders mounted on the right hand chassis rail (outside). Each master cylinder has a reservoir (a translucent plastic container with a black plastic screwed cap). Check both of these and make sure they are full of brake fluid. You may find one of them is empty!

JD, July 2009

if it's fitted with a tachograph it may be the led for speed setting,can be adjusted to come on at a set speed.

k, July 2009