Campaign No. 2013010001, February 2013

TO:

ALL MERCEDES-BENZ CENTERS

SUBJECT:

Model 207, 212, 218, 221, 231 with Engine M278, Model Year 2013
Remove Check Valve for Left and Right Secondary Chain Tensioners

This Service Campaign has been initiated because Daimler AG (DAG) has determined that the check
valve of the left and right secondary chain tensioners installed at the factory may have been pressed too
deep into the cylinder heads. As a result oil supply into the cylinder head cannot be ensured. An
authorized Mercedes-Benz dealer will remove the check valve of the left and right side secondary chain
tensioners at the next workshop service.

Prior to performing this Service Campaign:


Please check VMI to determine if the vehicle is involved in the Campaign and if it has been previously
repaired.



Please review the entire Service Campaign bulletin and follow the repair procedure exactly as
described.

Please note that Recall and Service Campaigns do not expire and may also be performed on a vehicle
with a vehicle status indicator.

Approximately 167 vehicles are affected.

Order No. P-SC- 2013010001
This bulletin has been created and maintained in accordance with MBUSA-SLP S423QH001, Document and Data
Control, and MBUSA-SLP S424HH001, Control of Quality Records.

2

Procedure
A. Remove Left and Right Secondary Chain Tensioner
Note:
Do not remove chain tensioners at the same time. After removal of the first chain tensioner, remove the
corresponding check valve, reinstall the chain tensioner and continue with the second chain tensioner.
Note: (regarding below WIS instructions)


Drain coolant at radiator only, do not drain coolant from engine block.



Using a Torx 40 bit X 72 mm (locally sourced tool, see special tools section) will allow for easier access
to lower oil filter housing bolts.

1. For models 207, 212, 218 refer to WIS: AR05.10-P-7800ELB.
2. For models 216, 221 refer to WIS: AR05.10-P-7800MMB.
3. For model 231 refer to WIS: AR05.10-P-7800RKB and additional information below:
CAUTION!
Refer to safety precautions located in WIS: AS20.00-Z-0001-01A, AS00.00-Z-0010-01A,
AH20.00-N-2080-01A.


Remove/install charge air ducts (refer to attached WIS document on page 6).



Remove lower engine compartment panels, refer to WIS: AR61.020-P-1105RK.



Drain coolant from radiator (arrow, Figure 1).

Figure 1 (model 231)


Refill cooling system and bleed (after performing subject B), refer WIS: AR20.00-P-1142-04A



Check cooling system for leaks (after performing subject B), refer to WIS document on page 9.

P-SC- 2013010001

3

B. Remove Check Valve from Cylinder Head
1. Set puller W 605 589 00 33 00 with washers and an M6 nut to a remaining length of approx. 4 mm
(Figure 2).

Figure 2
2. Remove check valve (A, Figure 3) with set puller (B) W 605 589 00 33 00 from cylinder head.

B

A

Figure 3 (Shown on right side)
Note:
Cover chain case opening with rag so no parts can fall in.
4. Assemble in the reverse order.
Note:
Be sure to refill cooling system, bleed system, and check for leaks.

P-SC- 2013010001

4

Special Tools

W 605 589 00 33 00
Puller

Locally Sourced
Torx 40 bit x 70 mm*

* Please be advised that the Torx 40 bit x 70mm (2.75") length is available through your Local
Tool dealers (e.g. Snap-on, Matco, Mac) or online via these websites:
 Wiha Tools @ http://www.wihatools.com/700seri/745ser70.htm
 All Spec @ http://www.all-spec.com/products/49ATX40.html
Torx Tool Part Numbers:
Wiha part number 74561 - Torx 40 bit by 70mm (2.75") length
Facom part number EXR140L - Torx 40 bit by 70mm (2.75") length

Note (regarding WIS documents referenced in this Procedure):
Replacement of parts not listed in the parts table of this Procedure are not claimable under
this campaign. If replacement of additional part(s) is necessary, check coverage prior to
submitting under warranty.
Primary Parts Information
Qty.
Part Name

Part Number

16

N 000000 006365

1
1
1
1 (15 vehicles)
1 (5 vehicles)
1
1 Gal.
4
1)
2)

Front cover hexalobular
bolt (left, right)
Thermostat O-ring
Thermostat molded seal
Oil filter housing molded seal
Loctite 7200 cleaner 1)
Loctite 7063 cleaner spray 2)
Loctite 5970 sealant
Engine Coolant
O-rings

Estimated Replacement
Rate
100%

A 022 997 64 45
A 278 201 02 80
A 278 184 02 80
A 010 989 90 71
A 001 986 71 71 10
A003 989 98 20 10
BQ 1 03 0004
A 023 997 44 45

Loctite 7200 - sufficient for 15 vehicles, submit as Local Purchase - LTG00117, Qty 1, handling is included.
Loctite 7063 - sufficient for 5 vehicles, submit as Local Purchase - LTC00242, Qty 1, handling is included.

P-SC- 2013010001

5

Note:


Please be aware that only the part number(s) referenced in the Campaign Bulletin is/are
approved for use to repair the vehicle. Repairs performed using any other part(s) will not
have been performed in accordance with the campaign. Accordingly, warranty claims
submitted with reference to an improper part number(s) will be denied.



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

Warranty Information
Operation: Remove check valve for secondary drive chain tensioner (02-7954).
Damage Code
05 900 31 7

Operation Number
02-7954

Note:
Labor times are subject to change.

P-SC- 2013010001

Labor Time (hrs.)
4.2

6

ENGINE 157, 278 in MODEL 231

1l Upper charge air duct on the left
1r Upper charge air duct on the right
2l Lower charge air duct on the left
2r Lower charge air duct on the right
3 Engine cover

4 Air cleaner housing
5 Engine suction air duct
6 Charge air cooler
7 Oil line
8 Screw/bolt

Remove/install

1

Remove engine covers (3)

2

Remove right and left engine suction air
duct (5)

3.

Remove oil lines (7) for engine oil
cooling from oil filter housing and lay to
the side outside of the working area

ENGINE 157 in MODEL 231

Plug openings.
Installation: Replace sealing rings
and clean connection area of the oil lines
(7).
Record plug

P-SC- 2013010001

129 589 00 91 00

7

4

Release clamp for upper charge air duct
on the left (1l) or for upper charge air
duct on the right (1r) on boot air filter
housing (4)

The boot remains on the air filter
housing (4).

5

Release clamp for upper charge air duct
on the left (1l) or for upper charge air
duct on the right (1r) on turbocharger

The boot remains on the upper
charge air duct on the left (1l) or for
upper charge air duct on the right (1r).

6

Unscrew screw/bolt (8) upper charge air
duct on the left (1l) or for upper charge
air duct on the right (1r) on cylinder head
cover

Bolt, charge air manifold to front
cover/oil filter housing/cylinder head/
cylinder head cover

7

Remove upper charge air duct on the left
(1l) or upper charge air duct on the right
(1r)

Seal openings on air intake pipe (6)
and turbocharger.
Set of protective caps

8

Remove air filter housing (4)

9

Release clamp for upper charge air duct
on the left (2l) or for upper charge air
duct on the right (2r) on charge air cooler
(6)

The boot remains on the charge air
cooler (6).

10

Release clamp for boot for lower charge
air duct on the left (2l) or for lower
charge air duct on the right (2r) on
turbocharger

The boot remains on the
turbocharger.

11

Remove bolts for right lower charge air
duct (2r) from cylinder head

When removing the right lower
charge air duct (2r)

12