BMW fault code 4B62

Engine electronics

In the engine electronics, code 4B62 means different things depending on the version of the module in the car. Find your car below; the app shows the right one for yours.

4B62 reduction agent passive tank level sensor, plausibility

Module versions: Digital Diesel Electronics (D72N47B0), Digital Diesel Electronics (D73N47A0)

Which BMWs have these versions depends on the engine and equipment, so we don't list them here; AutoLingo for BMW reads which version your car has.

DDE: Reducing-agent passive-tank fill-level sensor, plausibility

Module version: DDE US-diesel fuel (D73N57C0)

Which BMWs have this version depends on the engine and equipment, so we don't list them here; AutoLingo for BMW reads which version your car has.

4B62 Reducing-agent passive tank fill-level sensor, plausibility

Module version: Digital Diesel Electronics (D73N57D0)

Which BMWs have this version depends on the engine and equipment, so we don't list them here; AutoLingo for BMW reads which version your car has.

Reading and clearing it

Fault code 4B62 is a BMW code, stored in the car's engine electronics, not a generic OBD2 code (P0xxx): a generic OBD2 reader only reaches the engine's emissions faults, so it won't show it. AutoLingo for BMW reads it with BMW's own diagnostic protocols, in plain English, with the details the module stored about it, and clears it after a repair. If a fault comes right back after it's cleared, the problem is still there.

The engine electronics is on: 3 Series (E46), Z8 (E52), X5 (E53), 5 Series (E60), 5 Series (E61), 6 Series (E63), 6 Series (E64), 7 Series (E65), 7 Series (E66), 7 Series (E67), X5 (E70), X6 (E71), X6 (E72), 1 Series (E81), 1 Series (E82), X3 (E83), X1 (E84), Z4 (E85), Z4 (E86), 1 Series (E87), 1 Series (E88), Z4 (E89), 3 Series (E90), 3 Series (E91), 3 Series (E92), 3 Series (E93)

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