P-SC-2013010001

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.
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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
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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
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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
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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
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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
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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
Remove screw/bolts for lower charge air
duct on the left (2l) from cylinder head
and oil filter housing
When removing the lower charge air
duct on the left (2r)
Bolt, charge air manifold to front
cover/oil filter housing/cylinder head/
cylinder head cover
13
Remove lower charge air duct on the left
(2l) or lower charge air duct on the right
(2r)
BA09.40-P-1008-01R
001 589 02 91 00
BA09.40-P-1008-01R
Seal openings on air intake pipe (6)
and turbocharger.
Set of protective caps
001 589 02 91 00
Check
14
Check boots, rubber seal and clamp for
damage
15
Install in the reverse order
Replace if necessary.
Check
Danger!
Risk of accident from vehicle starting
off by itself when engine running. Risk
of injury (bruises and burns) resulting
Secure vehicle to prevent it from starting
off by itself. Wear closed and snug-fitting
work clothes. Do not touch hot or rotating
parts.
from working on the engine while it is
being started or when it is running.
16
Carry out engine test run, checking the
engine for proper operation and leaks
P-SC- 2013010001
AS00.00-Z-0005-01A
8
Turbocharger
Set of protective caps
Record plug
P-SC- 2013010001
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AR20.00-P-1010RK
Inspecting cooling system for leaks
15.5.12
157, 276, 278 in MODEL 231
ENGINES
Shown on engine 276
1 Cap
2 Coolant expansion reservoir
3 Tester cap
4 Pressure pump
P20.00-2455-05
Removing
Danger!
Risk of injury caused by fingers being
pinched or crushed when removing,
installing or aligning hoods, doors,
trunk lids, liftgates or sliding roof
Keep body parts and limbs well clear of
moving parts.
AS00.00-Z-0011-01A
Danger!
Risk of injury to skin and eyes caused
by scalding from contact with hot
coolant spray. Risk of poisoning caused
by swallowing coolant.
Do not open cooling system unless
coolant temperature is below 90°C.
Open cap slowly and release the
pressure. Do not pour coolant into
beverage containers.
AS20.00-Z-0001-01A
Wear protective gloves, protective
clothing and safety glasses.
1
Switch on ignition
P-SC- 2013010001
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2
Adjust heater to maximum heat output
3
Unscrew cap (1) from coolant
expansion reservoir (2)
Unscrew cap (1) slowly and relieve
overpressure.
4
Check coolant level and antifreeze
content coolant
If antifreeze content of coolant is too
small, either antifreeze protection must
be added or the coolant must be
replaced.
Notes on coolant
AH20.00-N-2080-01A
5
Screw on test cap (3) at coolant
expansion reservoir (2)
Test cap
210 589 00 91 00
6
Connect pressure pump (4) at tester
cap (3)
Pressure pump
124 589 24 21 00
Test cap
210 589 00 91 00
7
Apply test pressure to cooling system
The specified test pressure must not
be exceeded. To avoid any damage to
the cooling system.
BE20.30-P-1005-01A
Checking
8
Check condition and seating of the
Henn coupling.
9
Perform visual inspection on coolant
carrying components
Replace catch springs if necessary.
Check condition and coolant loss for
all coolant carrying components and
connections. The coolant carrying
components should be checked for inner
leaktightness if there is no external
coolant loss. There is the possibility, for
example, that coolant can find its way
over a defective cylinder head gasket
into the combustion chamber or over a
defective water heat exchanger into the
oil circuits.
Install
P-SC- 2013010001
AR09.41-P-1311-01AL
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10
Relieve test pressure in cooling system
To do this actuate pressure relief
button on the
11
Remove pressure pump (4) from tester
cap (3)
12
Unscrew tester cap (3) from coolant
expansion reservoir (2)
13
Switch off ignition
14
Check coolant level and antifreeze
content coolant
15
pressure pump (4)
Pressure pump
124 589 24 21 00
Mixture ratio for coolant
BF20.00-P-1001-04A
Notes on coolant
AH20.00-N-2080-01A
Notes on coolant level
AH20.00-P-1142-01V
Screw cap (1) onto coolant expansion
reservoir (2)
Cap for radiator or expansion reservoir
2-stage
cap
Number
Designation
BE20.30-P-1005-01A
Test pressure for pressure-testing
cooling system
bar gage
1.4
Mixture ratio for coolant
Number
Designation
Engine all
BF20.00-P-1001-04A
Mixture ratio for Antifreeze/water
coolant
Specifications for service
products
P-SC- 2013010001
up to -37°C
50/50
up to -45°C
55/45
Sheet
BB00.40-P-0310-01A
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Sheet
210 589 00 91 00
124 589 24 21 00
Test cap
Pressure pump
P-SC- 2013010001
BB00.40-P-0325-00A