Vazamentos de água

501-25-73 Body Repairs - General Information 501-25-73 DESCRIPTION AND OPERATION 0.5 m 0.5 m E105337 Car wash test Certain leak problems only appear in a car wash or can only be simulated there. The concerned area of the passenger compartment should be inspected with a torch during the wash procedure. Road Test Some leaks only appear when the vehicle is moving. If no leaks are detected during the above-mentioned tests, road tests should be carried out on wet roads: ‡ At various speeds. ‡ On various road surfaces (asphalt to cobbles). ‡ With loaded or unloaded vehicle. ‡ Driving through puddles (splash water). Test with UV lamp A leak test can also be performed using a UV lamp and a special contrasting agent. The advantages of using contrast agent are: ‡ No need to dry out wet areas beforehand. ‡ The water entry and its subsequent path can be seen more clearly. ‡ No need to remove most ancillary components from the vehicle. NOTE: The equipment manufacturer's instructions must be followed when using a UV lamp and contrast agent. Procedure for using a UV lamp. ‡ Wet the test area with clear water from the outside. ‡ Prepare test liquid and apply it from the outside using a suitable water sprayer. ‡ Illuminate the relevant area from the inside using the UV lamp. The test liquid which enters will make the leak visible. Chalk/powder test This test checks the contact surfaces of seals on doors, hatches and lids. Process using a door seal as an example: To do this, the door seal is coated with powder or brushed with chalk. A thin layer of grease is applied to the contact area of the seal. The door must then be slowly closed and reopened. The width and continuity of the imprint can now be checked on the seal.