Recommended replacement interval for the part category Glow plug : 30000 km

Important!

This replacement procedure can be used for:
MERCEDES-BENZ C-Class Saloon (W203) C 270 CDI (203.016), MERCEDES-BENZ C-Class Saloon (W203) C 270 CDI (203.016), MERCEDES-BENZ E-Class Saloon (W210) E 270 CDI (210.016), MERCEDES-BENZ E-Class Saloon (W210) E 270 CDI (210.016), MERCEDES-BENZ C-Class T-modell (S203) C 270 CDI (203.216), MERCEDES-BENZ C-Class T-modell (S203) C 270 CDI (203.216), MERCEDES-BENZ E-Class T-modell (S210) E 270 T CDI, MERCEDES-BENZ E-Class T-modell (S210) E 270 T CDI (210.216), MERCEDES-BENZ E-Class Platform / Chassis (VF210) E 270 CDI (210.616) … View more

The steps may slightly vary depending on the car design.

How to change glow plugs on MERCEDES ML W163 [TUTORIAL AUTODOC]

Alternative products

Glow plug

Replacement: glow plugs – Mercedes ML W163. Tools you need:

                      WD-40 spray
                    
                      All-purpose cleaning spray
                    
                      High-temperature ceramic grease
                    
                      Torque wrench
                    
                      Spark plug socket # 10
                    
                      Drive socket # Е11 
                    
                      Ratchet wrench
                    
                      Flat screwdriver
                    
                      Needle nose pliers
                    
                      Fender cover

Buy tools

Replacement: glow plugs – Mercedes ML W163. Tip from AUTODOC experts:

The replacement procedure is identical for all glow plugs.
Wear gloves to protect your hands from hot surfaces.
Please note: all work on the car – Mercedes ML W163 – should be done with the engine switched off.

Carry out replacement in the following order:

Step 1

Open the bonnet.
Step 2

Use a fender protection cover to prevent damaging paintwork and plastic parts of the car.
Step 3

Clean dirt, dust and debris from inside the spark plug wells.
Step 4

Treat the glow plugs. Use WD-40 spray.
Step 5

Before getting down to work, start the engine and let it warm up to operating temperature.
Step 6

Shut off the engine.

Step 7

Clean the fuel return line. Use all-purpose cleaning spray.
Step 8

Disconnect the fuel return line hose. Use a flat screwdriver.
Step 9

Blank off the fuel return line.
Step 10

Unscrew the engine vacuum pipe fastener. Use a drive socket #Е11. Use a ratchet wrench.
Step 11

Detach the glow plug wiring connectors. Use needle nose pliers.
Step 12

Clean dirt, dust and debris from inside the spark plug wells.
Step 13

Unscrew the glow plugs. Use the spark plug socket #10. Use a torque wrench.
Step 14

Remove the glow plugs. Use the spark plug socket #10. Use needle nose pliers.
Step 15

Treat the glow plugs. Use high-temperature ceramic grease.

Please note!
Do not touch the heating element as fingerprints may cause malfunction.
Step 16

Install new glow plugs to their mounting seats. Use needle nose pliers.
Step 17

Tighten the glow plugs. Use the spark plug socket #10. Use a torque wrench. Tighten it to 15 nm torque.

Replacement: glow plugs – Mercedes ML W163. Professionals recommend:
Don't tighten the plugs with excessive force. Exceeding tightening torque can damage the thread connection. Be careful when working with a spark plug wrench. Its skewing can cause damage to the threaded connection.
Step 18

Attach the glow plug wiring connectors.
Step 19

Clean the fuel return line. Use all-purpose cleaning spray.
Step 20

Unstop the fuel return line.

Step 21

Connect the fuel return line hose.
Step 22

Tighten the engine vacuum pipe fastener. Use a drive socket #Е11. Use a ratchet wrench.
Step 23

Run the engine for a few minutes. This is necessary in order to make sure that the component operates properly.
Step 24

Shut off the engine.

Step 25

Remove the fender protection cover.
Step 26

Close the hood.

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