Field Remedy: 1879
| Subject: | Coolant Heater (Thermoplunger) - Overheating / Coolant Loss |
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| Models: | Engines: | Option: |
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| Vivaro 2004...2005 | Diesel Engines | except C36 (additional heater) |
| Complaint: | Coolant heater housing ring seal or hose connection melts resulting in engine coolant loss |
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| Cause: | Relays remain closed allowing continuous operation of the individual coolant heaters |
| Production: | Vehicles manufactured between 01 July 2004 to 15 November 2004 are affected: Production plant Luton: from 4 V 209101 to 5 V 614267 Production plant Barcelona: from 4 Y 704619 to 5 Y 706304 |
In case of customer complaint visually inspect the coolant housing ring seal (Picture I, arrow) and hose connections. If signs of coolant loss are found replace the heater assembly and the 3 controlling relays K75, K87 (40 A, P/N 9 110 983 / Cat.No. 44 02 983) and K76 (60 A, P/N 91 166 799 / Cat.No. 44 08 880). Relays with a blue dot on the top of the housing are OK and has not to be replaced. Coolant hoses should be inspected and replaced as necessary.
| FunctionalGroup: | D - Heating/Ventilation/Air conditioning,J - Engine,N - Electrical Equipment |
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| Complaint Group: | 04 - Electrical failures,10 - Leakages |
| Trouble Code: | None |
