2021 Mercedes-Benz CLA-Class Check Spare Wheel Well For Moisture

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Campaign No. 2021090006, September 2021

Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 2021 CLA-Class (118 platform) vehicles, the left rear section under the spare wheel well may not correspond to current specifications and may have developed a crack. This might allow water to enter into the spare wheel well. MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will check the spare wheel well for moisture on the affected vehicles and rework the respective area, if necessary.

Prior to performing this Campaign:

VMI must always be checked before performing campaigns to verify that the campaign is required on a specific vehicle. Always check for any other open campaigns, and perform accordingly.
Please review the entire Campaign bulletin and follow the repair procedure exactly as described.

Approximately 200 vehicles are affected.

Order No. P-SC-2021090006

This bulletin has been created and maintained in accordance with MBUSA-SLP S423QH001, Document and Data Control, and MBUSA-SLP S424HH001, Control of Quality Record

Check Spare Wheel Well for Moisture

Model 118

Check/test procedure

Open trunk lid

Lift cover of spare wheel well.

Check area of spare wheel well (A, Figure 1) for moisture/water.

1. Moisture/water present in spare wheel well: Carry out work procedure.
2. Moisture/water not present in spare wheel well: End measure.

Work procedure

Remove rear bumper.

For basic data, see AR88.20-P-2200MFA.

Remove left rear radar sensor mount (B, Figure 2).

Drill off crack on left in rear-end center section (Figure 3), weld shut, blend paint, and apply a cavity protection agent.

Assemble in reverse order.

Primary Parts Information

Qty.	Part Name	Part Number
1	Cavity Sealing Wax	A 000 986 72 70 10

Small parts such as screws, lock nuts, sealing rings, cable ties, fluids, sealant, etc. are not listed in the parts list. The required small parts are taken into account in the budgeting.

Note: The following allowable labor operation should be used when submitting a warranty claim for this repair:

Warranty Information

With Check

Damage Code	Operation Number	Description	Labor Time (hrs.)
88 910 75	02-0589	Check spare wheel well for leaks	0.1

With Check and Repair

Damage Code

Operation Number

Description

Labor Time (hrs.)

88 910 75

02-0589

Check spare wheel well for leaks

0.1

02-0590

Correct rear-end center section (after check)

Includes: Remove/install rear bumper; remove/install left rear radar sensor mount

4.3

Note: Always check ASRA for the current OP-Code times. Labor times are subject to change and updates may not be reflected in this document.

P-SC-2021090006

Check Spare Wheel Well for Moisture
Model CLA-Class (118 platform)
Model Year 2021

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