Mercedes-Benz: engine M272, M273. Manual — part 7

*BA15.18-P-1003-01B

17

Remove feed line duct (6) from cylinder head

*BA15.18-P-1002-01B

cover (10)

18

Detach front rubber mount (12) for air filter

*BA01.30-P-1011-01O

housing from cylinder head cover (10)

19

Remove heat shield (10a)

*BA01.30-P-1017-01O

20

Remove vacuum pump

Engine 272

AR43.05-P-1320ED

21

Loosen bolts for cylinder head cover (10) in

Engine 272

AR01.20-P-5014-03VA

reverse order of tightening procedure and
remove them

Engine 273

AR01.20-P-5014-03SX

*BA01.30-P-1004-01O

22

Pry off cylinder head cover (10) from

To avoid damaging sealing surfaces, do

cylinder head carefully

not pound in the prying tool between the
cylinder head cover (10) and the cylinder
head.

Installation:

Apply sealant to cylinder

head cover (10)

Notes on sealant path for cylinder head

Engine 272

AH01.30-P-1000-08V

cover

Engine 273

AH01.30-P-1000-08SX

*112589002500

Loctite sealant 5970

*BR00.45-Z-1013-01A

Clean

23

Clean sealing surfaces at cylinder head and

AR01.00-P-0050-01A

Do not use any sharp-edged tools or

at cylinder head cover (10)

abrasive paper as this will damage the
sealing surfaces.
Loctite 7200

*BR00.45-Z-1038-04A

Cleaning spray, Loctite 7063 (150ml)

*BR00.45-Z-1046-04A

24

Install in the reverse order

Checking

Risk of accident

Secure vehicle to prevent it from moving by

Danger!

caused by vehicle starting

AS00.00-Z-0005-01A

off by itself when engine is running. Risk of itself.
injury

Wear closed and snug-fitting work clothes.

caused by contusions and burns

during starting procedure or when working

Do not touch hot or rotating parts.

near the engine as it is running

25

Conduct engine test run and check engine
for leaks

Injectors, injection valves, lines

Number

Designation

Engine

Engine

272

273

BA07.03-P-1001-01B

Union nut, fuel line to fuel distributor

Nm

20

20

BA07.03-P-1004-01B

Protective cap on service valve

Plastic

Nm

2

-

Metal

Nm

15

-

Cylinder head

Number

Designation

Engine

Engine

272

273

Bolt, ground line to front cover

M6

Nm

9

9

BA01.30-P-1001-01O

Bolt, cylinder head cover to cylinder head

M7

Stage 1

Nm

12

12

BA01.30-P-1004-01O

Stage 2

°

90

90

Bolt, lifting eye to cylinder head

M8

Nm

20

20

BA01.30-P-1005-01O

Страница 2 из 3

© Daimler AG, 07.04.13, G/07/14, ar01.20-p-5013el, Remove/install left cylinder head cover
ENGINE 272, 273 (except 272.983) in MODEL 212

7

Rotate engine at center bolt for crankshaft

The thrust pin (1a) for chain tensioner

in direction of engine rotation by a 90°

(1) will be pushed out and tensions the

crank angle

timing chain.

8

Install end cover (3)

9

Install alternator

AR15.40-P-5032EW

Risk of accident

Secure vehicle to prevent it from moving by

Danger!

caused by vehicle starting

AS00.00-Z-0005-01A

off by itself when engine is running. Risk of itself.
injury

Wear closed and snug-fitting work clothes.

caused by contusions and burns

during starting procedure or when working

Do not touch hot or rotating parts.

near the engine as it is running

10

Carry out an engine test run and check
engine for leaks

Timing chain, chain tensioner

Number

Designation

Engine

Engine

272

273

M22 1.5

BA05.10-P-1008-01B

Chain tensioner on timing case

Nm

70

70

BA05.10-P-1009-01B

Torque on unlock chain tensioner

Nm

70

70

001 589 65 09 00

Wrench socket

Страница 2 из 2

© Daimler AG, 07.04.13, G/07/14, ar05.10-p-7800ew, Remove/install chain tensioner
ENGINES 272, 273 in MODEL 212

AR05.10-P-8127EW

Remove/install tensioning rail

2.3.10

ENGINES 272, 273 in MODEL 212

1a

Tensioning rail

P05.10-2390-06

Remove/install

1

Remove camshaft adjuster

Camshaft adjuster of intake camshaft

AR05.20-P-7201EWE

Camshaft adjuster of exhaust camshaft

AR05.20-P-7201EWA

2

Remove tensioning rail bolt

AR01.30-P-5800-04V

*116589203300

*116589013400

Installation:

Apply sealant to tensioning

rail bolts before assembly.

*112589002500

Loctite sealant 5970

*BR00.45-Z-1013-01A

3

Pull tensioning rail (1a) upwards and out of
timing case

4

Install in the reverse order

112 589 00 25 00

116 589 20 33 00

116 589 01 34 00

Squeeze gun

Impact extractor

Threaded stud

Repair materials

Number

Designation

Order number

BR00.45-Z-1013-01A

Loctite sealant 5970

A 003 989 98 20

Страница 1 из 1

© Daimler AG, 07.04.13, G/07/14, ar05.10-p-8127ew, Remove/install tensioning rail
ENGINES 272, 273 in MODEL 212

Bolt, air filter housing rubber mount to

M6

Nm

9

9

BA01.30-P-1011-01O

cylinder head cover

Bolt, heat shield to cylinder head

M6

Nm

9

9

BA01.30-P-1017-01O

Engine wiring harness

Number

Designation

Engine

Engine

272

273

BA15.18-P-1002-01B

Bolt, feed duct to cylinder head cover

Nm

8

8

BA15.18-P-1003-01B

Bolt, feed duct to engine lifting eye

Nm

8

8

119 589 04 63 00

129 589 00 91 00

112 589 00 25 00

Pressure hose

Set of stop plugs

Squeeze gun

Repair materials

Number

Designation

Order number

BR00.45-Z-1013-01A

Loctite sealant 5970

A 003 989 98 20

BR00.45-Z-1038-04A

Loctite 7200

Henkel Loctite Deutschland GmbH
Arabellastrasse 17
81925 Mьnchen
Germany
Tel. +49 899268-0
Fax + 49 899101978
www.Loctite.de

BR00.45-Z-1046-04A

Cleaning spray, Loctite 7063 (150ml)

A 001 986 71 71 10

Страница 3 из 3

© Daimler AG, 07.04.13, G/07/14, ar01.20-p-5013el, Remove/install left cylinder head cover
ENGINE 272, 273 (except 272.983) in MODEL 212