Draper Expert Engine Timing Kit ETK112 (Audi)

Precision Timing for Audi's Latest Generation 3.0 TDI Common Rail Engines

The third-generation Audi 3.0 TDI common rail engine — introduced progressively from 2014 across the A4, A6, A7 and Q7 model lines — represents a significant evolution over its predecessors, featuring revised common rail fuel delivery, enhanced clean diesel emissions technology and, in the Q7, integration with the e-tron plug-in hybrid drivetrain. With these advances in complexity came revised timing chain architecture and new tooling requirements — meaning the timing kits designed for earlier 3.0 TDI variants are not directly applicable.

The Draper Expert ETK112 is the purpose-designed OEM-equivalent timing kit for this specific engine generation. It provides a complete, correctly referenced set of tools for locking all critical engine components in their timed positions during camshaft timing chain removal and replacement — giving independent VAG specialists the same capability as a franchised Audi dealer workshop.

8-Piece OEM-Equivalent Tool Set

Every tool in the ETK112 is manufactured to OEM-equivalent specification, directly replicating the VAG dealer workshop tooling for this engine family. OEM reference numbers are confirmed for all applicable pieces:

• 2 x Camshaft gear locking pins — OEM ref. T10060A
• 1 x Sprocket holding/turning tool — OEM ref. T40310
• 1 x Crankshaft locking pin — OEM ref. T40237
• 2 x Tension locking pins — OEM ref. T40316
• 1 x High-pressure fuel pump locking pin — OEM ref. T40245
• 1 x Balance shaft locking pin — OEM ref. 3359

The confirmed OEM references ensure each tool is dimensioned and profiled to engage correctly with the specific geometry of this engine generation — providing the secure, accurate lock-up required for safe timing chain work.

What Each Tool Does

Camshaft Gear Locking Pins x2 (T10060A) Two camshaft gear locking pins are required on this engine family to lock both the intake and exhaust camshaft gears simultaneously in their correct timed positions before the timing chain is disturbed. The use of two pins — one per camshaft gear — ensures both camshafts are independently secured and cannot rotate relative to each other or the crankshaft during chain removal and refitting. This is a critical step: any independent camshaft movement on this engine risks loss of valve timing and potential valve-to-piston contact.

Sprocket Holding/Turning Tool (T40310) Serves a dual function during the timing procedure. It holds the camshaft sprocket securely against rotation when locking pins are being positioned, and provides a controlled means of rotating the sprocket during the initial engine positioning phase. Correct sprocket engagement during both rotation and holding is essential to avoid damage to the variable valve timing actuator components integrated into the sprocket assembly on these engines.

Crankshaft Locking Pin (T40237) Locks the crankshaft at the correct top dead centre timing position once it has been rotated into alignment. With the crankshaft pinned, all other locking tools can be applied with confidence that the engine is in the correct and stable position for the chain replacement procedure. The T40237 is shared across multiple VAG timing procedures, confirming its application to this engine generation.

Tension Locking Pins x2 (T40316) Two tension locking pins are required on this engine, reflecting the more complex chain tensioner arrangement of the third-generation 3.0 TDI. The pins lock the chain tensioners in their retracted positions during chain removal, preventing them from extending and obstructing the procedure. As with all tensioner work, correct locking sequence and controlled release during reassembly is critical to achieving correct final chain tension.

High-Pressure Fuel Pump Locking Pin (T40245) The common rail high-pressure fuel pump on this engine is chain-driven and must be locked in its correct timing position during chain replacement. The T40245 pin engages with the pump's locking point to hold it precisely in phase throughout the procedure. Incorrect HP pump timing on a common rail diesel results in hard starting, rough running, poor fuel economy and potential injection system damage — making this tool an essential rather than optional component of the kit.

Balance Shaft Locking Pin (OEM 3359) The 3.0 TDI engine family in this generation retains a balance shaft assembly driven by the timing chain system. The balance shaft must be locked in its correct position during chain replacement to ensure it is correctly phased on reassembly. Incorrect balance shaft timing causes significant engine vibration at all speeds and requires the full timing procedure to be repeated to rectify — making correct locking at the outset essential.

Vehicle and Engine Code Compatibility

The ETK112 is specifically designed for the following Audi models and engine codes:

Engine Codes: CRTF/CZVA, CSWB/CRTC, CZVC/CZVE, CZVB/CZVD, CZVF/CVZA, CRTD/CRTE, CZZA/CZZB

Always confirm the engine code from the vehicle identification plate, service documentation or a VAG-compatible diagnostic scan tool before ordering.

ETK112 vs ETK111 — Choosing the Right Kit

Both the ETK111 and ETK112 cover Audi 3.0 TDI V6 engines, but they are not interchangeable. The ETK111 covers earlier 3.0 TDI variants from 2003 to 2017 across Audi, Porsche and Volkswagen, using a different set of OEM tooling references. The ETK112 is specifically designed for the revised third-generation 3.0 TDI common rail and clean diesel engines introduced from 2014 onwards, which feature a revised camshaft gear geometry requiring the T10060A locking pins, a revised tensioner arrangement requiring T40316 pins, and the addition of the T40245 HP pump locking pin for the updated common rail system.

Confirming the engine code is the definitive way to establish which kit applies to a specific vehicle.

Why These Later 3.0 TDI Engines Demand the Correct Tools

The clean diesel and common rail variants covered by the ETK112 represent the most emissions-optimised and mechanically complex iteration of the 3.0 TDI engine. The integration of more sophisticated variable valve timing, revised chain architecture and — in the Q7 e-tron — a hybrid drivetrain means timing chain work requires an even greater degree of precision than earlier variants. The balance shaft and dual-tensioner arrangement in particular demand tools that lock multiple components simultaneously and in the correct sequence — there is no safe alternative to using the purpose-designed tooling for this procedure.

Key Features & Benefits

• Complete 8-piece OEM-equivalent timing kit — All tools needed for timing chain removal and replacement on covered engine codes
• Third-generation Audi 3.0 TDI CR and clean diesel specific — Purpose-designed for this engine generation; not interchangeable with ETK111
• Dual camshaft gear locking pins (T10060A x2) — Simultaneously locks both intake and exhaust camshaft gears in the timed position
• Sprocket holding/turning tool (T40310) — Dual-function tool for controlled sprocket rotation and secure holding
• Crankshaft locking pin (T40237) — Securely locks crankshaft at correct TDC timing position
• Dual tension locking pins (T40316 x2) — Manages the revised twin-tensioner arrangement safely
• HP fuel pump locking pin (T40245) — Locks common rail injection pump in phase throughout chain work
• Balance shaft locking pin (3359) — Ensures correct balance shaft phasing on reassembly
• OEM reference numbers confirmed — Direct equivalence to Audi/VAG dealer workshop tooling
• Covers Q7 e-tron PHEV — Compatible with the hybrid variant of the 3.0 TDI in the Q7 platform
• Draper Expert quality — Professional-grade manufacture for accurate fit and reliable workshop performance

Who Is It For?

The Draper Expert ETK112 is the essential timing kit for independent Audi specialists and VAG-focused independent workshops working on the latest generation of 3.0 TDI A4, A6, A7 and Q7 models. As these vehicles move into the independent aftermarket in increasing numbers, the demand for the correct timing tooling for this engine generation will only grow — making the ETK112 a highly relevant and regularly used addition to any VAG specialist's tool inventory.

For experienced home mechanics with the knowledge and confidence to undertake timing chain work on this engine family, the ETK112 provides the correct OEM-equivalent tooling to carry out the procedure safely and to manufacturer specification.

Technical Specifications

• 8-piece OEM-equivalent engine timing kit for Audi 3.0cc TDI CR, clean diesel and e-tron PHEV engines
• Covers Audi A4 2015–2017, A6 2014–2017, A7 2014–2017 and Q7 e-tron 2015–2017
• Engine codes: CRTF/CZVA, CSWB/CRTC, CZVC/CZVE, CZVB/CZVD, CZVF/CVZA, CRTD/CRTE, CZZA/CZZB
• Locks engine in timed position for safe timing chain removal and replacement
• Two camshaft gear locking pins (T10060A) simultaneously lock intake and exhaust camshaft gears
• HP fuel pump locking pin (T40245) maintains common rail injection timing throughout chain work
• Balance shaft locking pin (3359) and dual tension locking pins (T40316) for complete engine lock-up
• Sprocket holding/turning tool (T40310) and crankshaft locking pin (T40237) included
• OEM-equivalent tooling — matches Audi/VAG dealer workshop specifications
• Product Code: ETK112 | Brand: Draper Expert

Q: Which vehicles is the ETK112 compatible with? The ETK112 covers the Audi A4 (2015–2017 TDI CR), Audi A6 (2014–2017 TDI CR/Clean Diesel), Audi A7 (2014–2017 BiTDI CR Clean Diesel) and Audi Q7 (2015–2017 e-tron PHEV), all fitted with the 3.0cc third-generation TDI common rail engine. Engine codes covered are CRTF/CZVA, CSWB/CRTC, CZVC/CZVE, CZVB/CZVD, CZVF/CVZA, CRTD/CRTE and CZZA/CZZB. Always confirm your engine code before ordering.

Q: What is the difference between the ETK111 and ETK112, and how do I know which one I need? Both kits cover Audi 3.0 TDI V6 engines but they are not interchangeable. The ETK111 covers earlier 3.0 TDI variants from 2003 to 2017 across Audi, Porsche and Volkswagen. The ETK112 is designed specifically for the revised third-generation 3.0 TDI common rail and clean diesel engines from 2014 onwards, which require a different set of OEM tools including the T10060A camshaft gear locking pins, T40316 tension locking pins and T40245 HP pump locking pin. The definitive way to establish which kit applies is to confirm the engine code and cross-reference it against each kit's compatibility list.

Q: Why does this kit include two camshaft gear locking pins? The third-generation 3.0 TDI has both an intake and an exhaust camshaft gear that must be locked simultaneously in their correct timed positions before the chain is disturbed. A single pin cannot lock both. Using two T10060A pins — one per camshaft gear — ensures both camshafts are independently secured and cannot rotate relative to each other during chain removal and refitting, maintaining correct valve timing throughout the procedure.

Q: Is the high-pressure fuel pump locking pin essential, or can this step be skipped? It is essential and must not be skipped. The common rail high-pressure fuel pump is chain-driven and its timing relative to the crankshaft is critical. If the pump is not locked before the chain is removed, it can rotate out of phase. Reassembling with incorrect HP pump timing on a common rail diesel engine results in hard starting, severe running problems, potential injection system damage and in some cases injector or pump failure — all of which are significantly more costly to rectify than the timing job itself.

Q: Does this kit cover the Q7 e-tron plug-in hybrid? Yes. The Audi Q7 e-tron PHEV (2015–2017) fitted with the 3.0cc TDI engine with compatible engine codes is within the ETK112's coverage. The hybrid drivetrain integration does not affect the timing chain procedure on the combustion engine itself, and the ETK112 provides all tools required for this variant.

Q: Is timing chain replacement on this engine suitable for a home mechanic? Timing chain work on the third-generation Audi 3.0 TDI is a highly involved procedure that requires thorough knowledge of VAG workshop procedures, access to the official workshop manual, precise torque work and experience with complex engine timing systems. It is not recommended for those without significant engine timing experience. For those with the appropriate skill level and knowledge, the ETK112 provides the correct OEM-equivalent tooling — but the procedure must be carried out strictly in accordance with the Audi workshop manual and all specified torque values.