Notes on sealant path for timing case cover - AH01.40-P-1000-01E

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ENGINE 648.961 in MODEL 211.023/026/223/226

ENGINE 646.961 in MODEL 211.006/206/606

ENGINE 648.960 in MODEL 220.025/125

ENGINE 646.951 in MODEL 211.004

ENGINE 647.981

ENGINE 611.980 in MODEL 638.094/194 with CODE MQ3 (Engine OM611 DE22 A (60kW))

ENGINE 611.981/987, 612.981

ENGINE 646 in MODEL 203, 209

ENGINE 646.8 in MODEL 204, 211

ENGINE 611.980 in MODEL 638.094/194/294 with CODE MQ4 (Engine OM611 DE22 LA (75 kW)) with CODE MQ5 (Engine OM611 DE22 LA (90kW))

ENGINE 611.960/961/962, 612.961/962/963/965/966/967, 613.960/961

ENGINE 647.961 in MODEL 211.016/216/616

Sealant path on timing case cover

Do not seal pressure oil galleries to the cylinder crankcase, as otherwise sealant applied at these points is entrained by the oil flow whereupon the oil supply bores are then clogged up.

The complete sealing surface must be cleaned.

Sealant may only be applied along the specified lines in the form of a sealant bead of 2.0 mm ±0.5 mm.

The sealant bead must not be spread.

Use only the sealant indicated in repair materials.

Mount timing case cover within a period of 10 minutes after applying the sealant bead.

Fig 1: Identifying Timing Case Cover Sealant Applying Area

Courtesy of MERCEDES-BENZ USA