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

Important!

This replacement procedure can be used for:
AUDI A6 Saloon (4F2, C6) 2.0 TDI, AUDI A6 Saloon (4F2, C6) 2.0 TDI, AUDI A6 Saloon (4F2, C6) 2.0 TDI … View more

The steps may slightly vary depending on the car design.

This video shows the replacement procedure of a similar car part on another vehicle

Alternative products

Glow plug

Replacement: glow plugs – AUDI A6 (4F2, C6). Tools you might need:

                      WD-40 spray
                    
                      Electronic spray
                    
                      High-temperature ceramic grease
                    
                      Torque wrench
                    
                      Spark plug socket # 10
                    
                      Torx bit T27
                    
                      Ratchet wrench
                    
                      Flat screwdriver
                    
                      Needle nose pliers
                    
                      Fender cover

Buy tools

Replacement: glow plugs – AUDI A6 (4F2, C6). AUTODOC experts recommend:

The replacement procedure is identical for all glow plugs.
Wear gloves to protect your hands from hot surfaces.
Replacement: glow plugs – AUDI A6 (4F2, C6). Recommended sequence of steps:

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

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

Step 4

Shut off the engine.

Step 5

Unscrew the bracket for the engine pipes. Use Torx T27. Use a ratchet wrench.
Step 6

Detach the engine wiring harness. Use a flat screwdriver.
Step 7

Detach the engine wiring harness connectors. Use a flat screwdriver.
Step 8

Detach the glow plug wiring connectors. Use needle nose pliers.
Step 9

Clean dirt, dust and debris from inside the spark plug wells.
Step 10

Treat the glow plugs. Use WD-40 spray.
Step 11

Unscrew the glow plugs. Use the spark plug socket #10. Use a torque wrench.
Step 12

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

Remove the glow plugs. Use the spark plug socket #10. Use needle nose pliers.
Step 14

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

Please note!
Do not touch the heating element as fingerprints may cause malfunction.
Step 15

Install new glow plugs to their mounting seats. Use needle nose pliers.
Step 16

Tighten the glow plugs. Use the spark plug socket #10. Use a torque wrench. Tighten it to 18 nm torque.

Replacement: glow plugs – AUDI A6 (4F2, C6). Tip from AUTODOC experts:
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 17

Attach the glow plug wiring connectors.
Step 18

Treat the engine wiring harness connectors. Use dielectric grease.
Step 19

Attach the engine wiring harness connectors.
Step 20

Attach the engine wiring harness.

Step 21

Screw in the bracket for the engine pipes. Use Torx T27. Use a torque wrench. Tighten it to 7 nm torque.

Step 22

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

Step 23

Shut off the engine.

Step 24

Remove the fender protection cover.

Step 25

Close the hood.

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