Remove/install rail

AR07.03-P-1010CDE

Remove/install rail

27.2.12

 

Remove/install

 If a fuel line is opened, it must be completely replaced otherwise leakage can occur

 Thoroughly clean area surrounding fuel line to be opened so that no dirt finds its way into the injection system since failure will occur otherwise

 The ground line on the battery must always be detached before beginning work on the fuel system otherwise pressure will be built up in the fuel system through opening a vehicle door or the trunk lid

1

Detach ground line from battery

Model 204

AR54.10-P-0003CW

Model 207

AR54.10-P-0003EW



Notes on battery

AH54.10-P-0001-01A

2

Remove air filter housing

AR09.10-P-1150CV

3

Remove respective ignition coil

AR15.12-P-2003CV

4

Disconnect purge line to upper separation point

When removing left rail (20)

5

Detach cable duct (6) from cylinder head cover



*BA15.18-P-1001-01B



*BA15.18-P-1002-01B



*BA15.18-P-1003-01B

6

Thoroughly clean area surrounding line connections

7

Remove fuel line (pr) from rail (20)

AR47.25-P-0006CDE

8

Disconnect electrical connector (4) at rail pressure sensor (B4/6)

When removing right rail (20)

9

Disconnect electrical connectors (5) to fuel injectors (Y76)

10

Remove screw/bolts (2)



*BA07.52-P-1010-01B

11

Remove rail injector unit

AR07.03-P-1010-01CDE



*602589003300



*272589003100



*272589003300



*272589004300



*272589023300



*129589009100

12

Replace sealing ring (7) between rail (20) and cylinder head cover

13

Install in the reverse order

 Danger!

Risk of accident caused by vehicle starting off by itself when engine is running. Risk of injury caused by contusions and burns during starting procedure or when working near the engine as it is running

Secure vehicle to prevent it from moving by itself.
Wear closed and snug-fitting work clothes.
Do not touch hot or rotating parts.

AS00.00-Z-0005-01A

14

Check fuel system for leaks with engine running

Number

Designation

Engine
272.982/
983/984/
985

BA07.52-P-1010-01B

Rail on cylinder head cover

Nm

9

Number

Designation

Engine
272

BA15.18-P-1001-01B

Screw/bolt, feed duct to resonance intake manifold

Nm

8

BA15.18-P-1002-01B

Screw/bolt, feed duct to cylinder head cover

Nm

8

BA15.18-P-1003-01B

Screw/bolt, feed duct to engine suspension lug

Nm

8