USA:n huoltotiedotteen mukainen testi vesiventtiilin A211 832 00 84 ja SAM:n testaamiseksi:
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DTB P-B-83.20/72 SEPT04
Rear A/C Intermittently Blows Warm Air in Cooling Mode or No Warm Air in Heating Mode.
Check the heat exchanger shut off valve, M16/32. DTCs 9026 (M16/32 open) and/or 9027
(M16/32 short circuited) may or may not be stored. A test via “actuations” in DAS may indicate
that the driver side SAM is malfunctioning. In any case, perform the following test. Prior to replacing
the driver side SAM, perform the following test.
1. Remove connector M4 from the driver’s side SAM.
2. With a multimeter, check the resistance between pin 9 and pin 12 on the connector just removed.
3. If the resistance for M16/32 is less than 10 ohms, replace the heat exchanger shut off valve. Do not replace the driver’s side SAM.
4. If the resistance for M16/32 is 10 ohms of more, the heat exchange shut off valve is OK. Continue to diagnose the system as needed.
Heat exchanger shut off valve part # A211 832 00 84
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Vuonna 2004 vesiventtiili A211 832 00 84 on korvattu uudemmalla A211 832 05 84.
Kolme erilaista tuplavesiventtiiliä webastolla varustettuun 211:en:
http://www.everythingbenz.com/z/part-ch ... e-duovalve" onclick="window.open(this.href);return false;
Mikä on A211 832 06 84? Vielä uudempi malli?