Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Coolant Line/Hose: Testing and Inspection

Coolant leak from hoses

Fault symptoms
"Coolant level low" message on SID.

Conditions
Minor leaks can occur at coolant hose connections due to the inner and outer layers of hose separating.

Diagnostic procedure
When rectifying a coolant leak, it is important that not only the hose clip is changed. Make also sure there are no defects in the hose and replace it if necessary.

Fault diagnosis procedure is not available.