• N-105-540-05 Genuine VW/Audi Internal Six-Lobe Mounting Screw, single screw and six-lobe recess, original product photo
  • N-105-540-05 Genuine VW/Audi Internal Six-Lobe Mounting Screw, rounded head and threaded shank, repeated original gallery photo 2
  • N-105-540-05 Genuine VW/Audi Internal Six-Lobe Mounting Screw, cam cage mounting hardware, repeated original gallery photo 3
  • N-105-540-05 Genuine VW/Audi Internal Six-Lobe Mounting Screw, individual engine fastener, repeated original gallery photo 4
  • N-105-540-05 Genuine VW/Audi Internal Six-Lobe Mounting Screw, original cylinder-head cover screw, repeated original gallery photo 5
  • N-105-540-05 Genuine VW/Audi Internal Six-Lobe Mounting Screw, threaded screw detail, repeated original gallery photo 6
  • N-105-540-05 Genuine VW/Audi Internal Six-Lobe Mounting Screw, original part reference N10554005, repeated original gallery photo 7
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Genuine VW/Audi

N-105-540-05 Genuine VW/Audi Internal Six-Lobe Mounting Screw

N-105-540-05 Genuine VW/Audi Internal Six-Lobe Mounting Screw

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N-105-540-05

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OVERVIEW

Genuine VW/Audi internal six-lobe mounting screw, part number N-105-540-05. This original fastener is cataloged at the specified cam cage / cylinder-head cover attachment on the GTI configurations below. It retains the assigned component in the factory engine assembly.

Technical details

  • Original number: N-105-540-05 / N10554005.
  • Original-parts catalog nominal size: M6 x 35.
  • Rounded head with internal six-lobe drive.
  • Cataloged earlier number: N10554001.
  • One screw supplied. Cam cage, cover, sealant and other hardware are separate.

The upper cylinder-head assembly requires the correct mounting hardware at each assigned location. The cam cage and related cover arrangement must sit correctly against the cylinder head; this screw is part of that attachment hardware, not a replacement for the separate sealing material.

Identify the exact part number and position before choosing hardware. The engine contains several screws with similar heads but different lengths and functions. An M6 thread alone does not establish interchangeability.

Common reasons to replace

Renew hardware during cam cage or cylinder-head cover service whenever the factory procedure requires new screws. Replacement is also appropriate for a missing fastener, damaged threads, a rounded drive recess, visible deformation or corrosion affecting installation.

Removal can expose previous overtightening, tool damage or incorrect substitute hardware. Inspect the mating threads and component contact surfaces before reinstalling the upper assembly.

An oil leak can involve sealing material, a damaged cover or another component. A replacement screw does not repair a cracked assembly or restore failed sealing material by itself. Do not overtighten the attachment to compensate for leakage.

Installation and service notes

Follow the factory procedure for the actual engine and upper cylinder-head arrangement. Cam cage service can affect the camshaft assembly, so preserve the required timing and component positioning throughout the repair.

Confirm the assigned screw number and location. Prepare mating surfaces, threaded holes and sealing material as directed. Keep exposed engine openings protected from debris and avoid introducing excess sealing material into the assembly.

Seat the component correctly and start the screw by hand in undamaged threads. Use a correctly fitting six-lobe driver fully engaged in the recess, and follow the prescribed sequence for the complete attachment.

Use the tightening specification for the actual cam cage or cover position, including any specified additional angle. Do not infer torque from the M6 x 35 designation or transfer a value from another engine fastener.

Follow the required hardware replacement and thread preparation instructions. If the screw binds or the component does not seat normally, check the part selection, alignment and mating threads before proceeding.

Complete the applicable timing, leak and functional checks after the repair. This listing supplies one original screw and does not include a full cam cage hardware set. Order the repair quantity and other components separately.

Fitment

Vehicle Model years Engine Configuration Application restrictions
Volkswagen GTI 2010–2014 2.0L turbocharged TSI gasoline, CCTA / CBFA Mk6 hatchback, front-wheel drive; 6-speed manual Specified cam cage / cylinder-head cover attachment screw. Confirm original N10554005 and assigned mounting position; other hardware and sealant are separate.
Volkswagen GTI 2010–2014 2.0L turbocharged TSI gasoline, CCTA / CBFA Mk6 hatchback, front-wheel drive; 6-speed DSG Specified cam cage / cylinder-head cover attachment screw. Confirm original N10554005 and assigned mounting position; other hardware and sealant are separate.
Volkswagen GTI 2015–2017 2.0L turbocharged TSI gasoline, EA888 Gen 3 Mk7 hatchback, front-wheel drive; 6-speed DSG Specified cam cage / cylinder-head cover attachment screw. Confirm original N10554005 and assigned mounting position; other hardware and sealant are separate.
Volkswagen GTI 2018 2.0L turbocharged TSI gasoline, EA888 Gen 3 Mk7.5 hatchback, front-wheel drive; 6-speed DSG Specified cam cage / cylinder-head cover attachment screw. Confirm original N10554005 and assigned mounting position; other hardware and sealant are separate.
Volkswagen GTI 2019–2021 2.0L turbocharged TSI gasoline, EA888 Gen 3 Mk7.5 hatchback, front-wheel drive; 7-speed DSG Specified cam cage / cylinder-head cover attachment screw. Confirm original N10554005 and assigned mounting position; other hardware and sealant are separate.

Confirm the original screw number and exact cam cage / cover position before ordering. One screw supplied.