News Channel Update |

Classified as MB Internal

Vehicle Compliance and Analysis

TO: Mercedes-Benz Dealer Principals, General Managers, Sales
Managers, Service Managers, Parts Managers
RE: Emission Service Campaign 2022070004 Launch
Notification
Replace Braided Hose of Low-Pressure Fuel Line

FROM: Gregory Gunther, Department Manager, Vehicle
Compliance and Analysis, Engineering Services
DATE: August 11, 2022

IMPORTANT NEW EMISSION SERVICE CAMPAIGN INFORMATION

Please note that all customer inquiries should be directed to the Customer Assistance Center at 1-800-FOR-MERCEDES.
Sincerely,
Gregory Gunther
Department Manager, Vehicle Compliance & Analysis

Mercedes-Benz USA, LLC
One Mercedes-Benz Drive

A Mercedes-Benz Group AG Company

Sandy Springs, GA 30328

770.705.0600

News Channel Update |

Vehicle Compliance and Analysis

Emission Service Campaign Launch Notification

August 11, 2022

Classified as MB Internal

Campaign No. :

Campaign Desc. :

2022070004

21P0792208

Replace Braided Hose of Low-Pressure
Fuel Line

This is to notify you of an Emission Service Campaign launch to replace the braided hose of the low-pressure fuel line and install a heat shield
over the new braided hose on 23,958 Model Year ("MY") 2018-2021 S-Class, S-Class Coupe/Cabriolet (217 and 222 platforms) vehicles. The
affected vehicles will be visible and flagged in VMI as "OPEN" on August 12, 2022.

Background
Mercedes-Benz AG ("MBAG"), the manufacturer of Mercedes-Benz vehicles, has determined
that on certain Model Year (“MY”) 2028-2021 S-Class, S-Class Coupe/Cabriolet (217 and 222
platforms) vehicles, the low pressure fuel line does not correspond to the current series
production configuration. Therefore, it is possible that accelerated aging in the area of
connection could occur, resulting in a leak. A risk of fire can be ruled out.
MBUSA will conduct an Emission Service Campaign. An authorized Mercedes-Benz dealer will
replace the braided hose of low-pressure fuel line and install a heat shield over the new braided
hose

Issue
What We’re Doing
Parts

Parts are available and may be ordred as necessary.

Vehicles Affected
Vehicle Model Year(s)

2018-2021
S-Class, S-Class Coupe/Cabriolet

Vehicle Model

Vehicle Population
23,958

Total Campaign Population

While we regret any inconvenience this may cause, MBUSA is determined to maintain a high level of vehicle quality and customer
satisfaction. Please refer all customer inquiries to the Customer Assistance Center at 1-800-FOR-MERCEDES.

Mercedes-Benz USA, LLC
One Mercedes-Benz Drive

A Mercedes-Benz Group AG Company

Sandy Springs, GA 30328

770.705.0600

Campaign No. 2022070004, August 2022

TO:

ALL MERCEDES-BENZ CENTERS

SUBJECT:

Model S-Class (217 and 222 platform)
Model Year 2018 - 2021
Replace Braided Hose of Low-Pressure Fuel Line

Mercedes-Benz AG ("MBAG"), the manufacturer of Mercedes-Benz vehicles, has determined that on
certain Model Year (“MY”) 2018-2021 S-Class, S-Class Coupe/Cabriolet (217 and 222 platforms) vehicles,
the low pressure fuel line does not correspond to the current series production configuration. Therefore, it
is possible that accelerated aging in the area of connection could occur, resulting in a leak. A risk of fire
can be ruled out.

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 23,958 vehicles are affected.
Order No. P-SC-2022070004
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

2

Replace braided hose of right low-pressure fuel line
Model 217 and 222
Work Procedure
1. Remove right air filter housing.
For basic data, see AR09.10-P-1152MNL.
2. Reduce fuel pressure via the service connection.
For basic data, see AR07.03-P-1460-01MNL.
3. Remove bleed line between right cylinder head cover and oil separator (figure 1).
Sealing ring will be reused.

Figure 1

P-SC-2022070004

3

4. Unscrew fastening clamps of low-pressure line (A, Figure 2) upstream and downstream of the braided hose.
The fastening clamps (A, Figure 2) should not be removed.

Figure 2
5. Open CLIC clamps on the braided hose and take off (figure 3, left). Carefully cut through the braided hose along its
length and remove from the metal line (figure 3, right).
This makes it easier to remove the braided hose from the metal line.
Cover work environment with a rag so that the remaining fuel is collected.

P-SC-2022070004

4
Figure 3
6. Slide on new braided hose, position, and fasten with new CLIC clamps.
Slide CLIC clamps onto line before the fabric hose.
Position braided hose on metal line based on markings (figure 4, middle and right).
Metal lines must not be bent during assembly!

Figure 4

P-SC-2022070004

5

7. Install heat shield over the new braided hose.
Close snap fasteners.

Figure 5
8. Assemble in reverse order.

Primary Parts Information
Qty.

Part Name

Part Number

2
1
1

Hose clamp
Fuel hose
Heat shield

A 000 995 60 10
A 177 070 31 00
A 177 096 05 00

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

Operation

Code

Number

07 922 08

02-0900

Description

Replace hose of right fuel line in low-pressure fuel circuit

Labor Time
(hrs.)

0.9

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-2022070004