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Mercedes-Benz TSB #LI49.20-P-056353
2015 Mercedes-Benz CLS550
TSB Document:
Affected Component: ELECTRICAL SYSTEM
- Summary
- Engine diagnosis warning lamp active. Fault code 20BE1B and/or 20BD1B (The heating element of the AdBlue tank has a malfunction) is logged in the Blue-Tec control unit.
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