How to Change Glow Plugs on VW TIGUAN (AD1)
Replacement Guide
Similar Video Tutorial
A video tutorial is available showing the replacement procedure for a similar car part on another vehicle.
Important! This replacement procedure can be used for: VW TIGUAN (AD1) 2.0 TDI, VW TIGUAN (AD1) 2.0 TDI 4motion, VW TIGUAN (AD1) 1.6 TDI. The steps may slightly vary depending on the car design. This tutorial was created based on the replacement procedure for a similar car part on: VW Passat Saloon (362) 2.0 TDI.
Tools You Might Need
The following tools and materials are recommended for this procedure:
- 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
[Image Description: A collection of automotive tools laid out neatly on a pegboard, including various pliers, screwdrivers, a torque wrench, spray cans, and sockets.]
AUTODOC Expert Recommendations
The replacement procedure is identical for all glow plugs.
Wear gloves to protect your hands from hot surfaces.
Recommended sequence of steps for VW TIGUAN (AD1) glow plug replacement:
Carry Out Replacement in the Following Order:
- 1 Open the bonnet.
- 2 Use a fender protection cover to prevent damaging paintwork and plastic parts of the car.
- 3 Before getting down to work, start the engine and let it warm up to operating temperature.
- 4 Shut off the engine.
- 5 Unscrew the bracket for the engine pipes. Use Torx T27. Use a ratchet wrench.
[Image Description: Close-up view of an engine bay showing engine pipes and a bracket secured by a bolt. A Torx T27 bit and ratchet wrench are shown in position to loosen the bolt.] - 6 Detach the engine wiring harness. Use a flat screwdriver.
[Image Description: Close-up view of the engine bay showing electrical connectors and wiring harnesses. A flat screwdriver is being used to detach a wiring harness.] - 7 Detach the engine wiring harness connectors. Use a flat screwdriver.
[Image Description: Close-up view of engine wiring harness connectors. A flat screwdriver is being used to disconnect a connector.] - 8 Detach the glow plug wiring connectors. Use needle nose pliers.
[Image Description: Close-up view of glow plug wiring connectors. Needle nose pliers are being used to detach a connector from a glow plug.] - 9 Clean dirt, dust, and debris from inside the spark plug wells.
[Image Description: Close-up view of spark plug wells in the engine cylinder head, showing some debris. A tool or compressed air is implied for cleaning.] - 10 Treat the glow plugs. Use WD-40 spray.
[Image Description: Close-up view of glow plugs in the engine. WD-40 spray is being applied to the base of the glow plugs.] - 11 Unscrew the glow plugs. Use the spark plug socket #10. Use a torque wrench.
[Image Description: Close-up view of a glow plug being unscrewed from the cylinder head using a spark plug socket #10 and a torque wrench.] - 12 Clean dirt, dust, and debris from inside the spark plug wells.
[Image Description: Hands wearing gloves are shown cleaning the inside of spark plug wells, likely with a brush or compressed air.] - 13 Remove the glow plugs. Use the spark plug socket #10. Use needle nose pliers.
[Image Description: Hands wearing gloves are shown using needle nose pliers to carefully remove a glow plug from the cylinder head after it has been unscrewed.] - 14 Treat the glow plugs. Use high-temperature ceramic grease.
[Image Description: New glow plugs are shown. High-temperature ceramic grease is being applied to the threads or tip of the glow plugs.] - 15 Install new glow plugs to their mounting seats. Use needle nose pliers.
[Image Description: Hands wearing gloves are shown using needle nose pliers to carefully insert new glow plugs into their respective mounting seats in the cylinder head.] - 16 Tighten the glow plugs. Use the spark plug socket #10. Use a torque wrench. Tighten it to 18 Nm torque.
[Image Description: A glow plug is being tightened using a torque wrench and spark plug socket #10, indicating the correct torque setting.] - 17 Attach the glow plug wiring connectors.
[Image Description: Hands wearing gloves are shown connecting the electrical wiring harnesses to the newly installed glow plugs.] - 18 Treat the engine wiring harness connectors. Use dielectric grease.
[Image Description: Dielectric grease is being applied to the electrical connectors of the engine wiring harness.] - 19 Attach the engine wiring harness connectors.
[Image Description: Hands wearing gloves are shown reconnecting the engine wiring harness connectors.] - 20 Attach the engine wiring harness.
[Image Description: The main engine wiring harness is being secured or reconnected in its proper position.] - 21 Screw in the bracket for the engine pipes. Use Torx T27. Use a torque wrench. Tighten it to 7 Nm torque.
[Image Description: The bracket for the engine pipes is being reinstalled and tightened with a Torx T27 bit and torque wrench.] - 22 Run the engine for a few minutes. This is necessary in order to make sure that the component operates properly.
- 23 Shut off the engine.
- 24 Remove the fender protection cover.
- 25 Close the hood.
Please note! Do not touch the heating element as fingerprints may cause malfunction.
Tips 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.
Conclusion
WELL DONE! ?
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DISCLAIMER:
The document contains only general recommendations that may be useful for you when you perform repair or replacement work. AUTODOC shall not be liable for any loss, injury, damage of property occurring in the repair or replacement process due to incorrect use or misinterpretation of the provided information. AUTODOC shall not be liable for any possible mistakes and uncertainties in this guide. The information provided is for information purposes only and cannot replace advice from specialists.
AUTODOC shall not be liable for incorrect or hazardous usage of equipment, tools and car parts. AUTODOC strongly recommends to be careful and observe the safety rules when performing repair or replacement works. Remember: usage of low quality auto parts does not guarantee you the appropriate level of road safety.
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