ar0703p1451va

Remove/install fuel distributor with injection valves (ME-SFI)

Type ar · topic 07.03 · version 0106 · 2010-03-09

Applies to: ENGINE 272 in MODEL 171

Where it sits

Function group 1 Engine › 07 Mixture formation › 07.03 Injection jets, Injection valves, Lines — Series 171

EinPAS 15 Engine › 15.45 Engine management › 15.45.42 Fuel distributor/rail/nozzle/injector — Series 171

Also applies to engines/gearboxes: 272 ***

AR07.03-P-1451VA

Remove/install fuel distributor with injection valves (ME-SFI)

9.3.10

ENGINE 272 in MODEL 171

Remove/install fuel distributor with injection valves (ME-SFI)

P07.03-2127-09

1a Right control unit bracket

1b Left control unit bracket

2 Fuel distributor

2a Service valve

2b Screw

N3/10 ME-SFI [ME] control unit

Y62 Fuel injection valves

3a Feed duct

3b Feed duct

4a Crankcase ventilation hose

4b Crankcase ventilation hose

5 Fuel pipe

Remove/install

Danger!

Risk of explosion caused by fuel igniting, risk of poisoning caused by inhaling and swallowing fuel and risk of injury to eyes and skin caused by contact with fuel

No fire, sparks, open flames or smoking.
Pour fuels only into suitable and appropriately marked containers.

Wear protective clothing when handling fuel.

AS47.00-Z-0001-01A

1

Turn key in ignition lock (electronic ignition switch control unit) to position "0"

2

Open engine hood and raise to vertical position

AR88.40-P-1000V

3

Remove air filter housing

AR09.10-P-1150VA

4

Remove ME control unit (N3/10) with feed lines connected from the top from the control unit brackets (1a, 1b)

5

Remove right control unit bracket (1a)

*BA07.08-P-1002-01A

6

Detach all electrical feed lines from the fuel distributor (2)

Installation: Install new cable ties.

7

Detach the feed line duct (3a) from the cylinder head cover and resonance intake manifold

*BA15.18-P-1001-01B

*BA15.18-P-1002-01B

8

Detach the feed line duct (3b) from the resonance intake manifold

*BA15.18-P-1001-01B

9

Disconnect the hoses (4a, 4b) of the crankcase ventilation

10

Remove the electrical connectors at the fuel injection valves (Y62)

11

Reduce fuel pressure via service valve (2a)

AR07.03-P-1460-01VA

*BA07.03-P-1004-01B

*119589046300

12

Detach fuel line (5) from fuel distributor (2)

Catch escaping fuel with an absorbent rag!

Seal connections immediately with stop plugs.

*BA07.03-P-1001-01B

*129589009100

13

Remove bolts (2b) and take off fuel distributor (2) with fuel injection valves (Y62)

Installation: Replace O-rings of the fuel injection valves (Y62).
Apply liquid lubricant to O-rings.

*BA07.03-P-1002-01B

Lubricant paste

*BR00.45-Z-1002-06A

14

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

15

Carry out an engine test run and check fuel system for leaks

Control unit

Number

Designation

Engine 272

BA07.08-P-1002-01A

Bolt, control unit bracket to resonance intake manifold

Nm

8

Engine wiring harness

Number

Designation

Engine 272

BA15.18-P-1001-01B

Bolt, feed duct to resonance intake manifold

Nm

8

BA15.18-P-1002-01B

Bolt, feed duct to cylinder head cover

Nm

8

Injectors, injection valves, lines

Number

Designation

Engine 272 without code 917

Engine 272 with code 917

BA07.03-P-1001-01B

Union nut, fuel line to fuel distributor

Nm

20

20

BA07.03-P-1002-01B

Bolt, fuel distributor to resonance intake manifold

Nm

9

9

BA07.03-P-1004-01B

Protective cap on service valve

Nm

-

15

Remove/install fuel distributor with injection valves (ME-SFI)
Remove/install fuel distributor with injection valves (ME-SFI)

129 589 00 91 00

Set of stop plugs

Pressure hose

119 589 04 63 00

Repair materials

Number

Designation

Order number

BR00.45-Z-1002-06A

Lubricating paste, rubber parts 2.5 kg, DB supply specification 6867.00

A 000 989 01 60

Referenced documents