About this part
The 06J103166A camshaft bridge is the direct replacement for the camshaft bearing bridge used on the EA888 Gen 2 1.8 and 2.0 TSI / TFSI engines. It is a genuine OEM-quality part, brand new, cast in AlSi12Cu1(Fe) aluminium exactly as the original, complete with the oil check valve and fine mesh strainer that feed the variable valve timing circuit, for workshops and owners chasing a rattle on startup, a camshaft correlation fault or a slow oil pressure drop when hot.
camshaft bridge — Genuine OEM camshaft bridge / cam bearing bracket for Volkswagen Group EA888 Gen 2 1.8 and 2.0 TSI / TFSI engines. Carries the camshaft journals and feeds the variable valve timing circuit through its built-in check valve and mesh screen. Camshaft timing basic check is required after replacement.
OE/OEM Part Number:
06J103166A, 06H103144F, 06H103144G, 06H103144H, 06H103144J, 06H103166F, 06H103166G, 06H103166K
What the bridge does, and how it fails
Part of the camshaft and VVT system, not just a bracket. On the EA888 Gen 2 the camshafts sit in a separate aluminium bridge that bolts to the cylinder head. The bridge carries the cam journals, seals the oil feed and — the part most owners never think about — contains a small check valve with a fine mesh strainer. Oil passes through that screen on its way to the camshaft adjuster, so the variable valve timing gets clean, non-returning oil pressure at the right moment.
Why it fails. That mesh screen has a very small surface area compared with the rest of the oil circuit. Sludge, carbon flakes and sealant debris from earlier repairs collect on it until flow is restricted. The check valve behind it then leaks back, so the adjuster loses its oil column at shutdown and the engine rattles for one to three seconds on the next cold start. As the restriction grows, camshaft timing drifts, the ECU can no longer reach the requested advance and the engine stores a correlation fault. Warped or scored bridges also cause cam journal wear, low hot idle oil pressure and oil seepage from the upper timing cover.
Why a new part, not a cleaned one. Cleaning the screen buys time at best: the check valve seat is usually already worn, the mesh is deformed, and the journal bores are out of round once the cam has run dry. This bridge is supplied brand new with the screen, check valve, journal bores and sealing faces as manufactured, ready to bolt on.
Symptoms, diagnosis and installation
• Typical symptoms — rattle or chain-slap noise for the first seconds after a cold start, rough idle, hesitation low down, reduced power, P0011 / P0016 or camshaft position correlation faults, oil leaking at the upper timing cover, sometimes a low oil pressure warning once the oil is fully hot.
• Confirm it before ordering — read the fault memory in address 01 and log the requested versus actual camshaft timing and the camshaft adaptation values. On a suspect car the adaptation sits at its limit and the actual timing lags the request at idle. Also check oil pressure with a mechanical gauge and inspect the oil filter housing for the same debris that clogs the screen — if the engine makes metal, the bridge is not the only problem.
• Installation notes — work on a cold engine, remove the upper timing cover and the camshaft adjuster, then unbolt the bridge in the factory sequence. Clean the head surface without scraping into the oil galleries, prime the new bridge screen with clean oil, fit a new gasket or sealant exactly as the workshop manual specifies, and torque the bolts in stages to the published figure — these bolts pull into aluminium and will strip if they are rushed. Replace the camshaft adjuster bolt if your manual calls it single-use. Afterwards change the engine oil and filter, clear the faults and run the engine through a full warm-up cycle before checking the timing adaptation again.
• Fitment caution — the EA888 was built in several generations and the bridge differs between them. Compare the casting number and the shape of the screen housing with your old part, or send us a photo of the casting mark before you order.
Fitment
The 06J103166A bridge is used on EA888 Gen 2 engines — the 1.8 and 2.0 TSI / TFSI family with chain-driven camshafts and a camshaft adjuster on the intake side. It is the part that supersedes several earlier and later numbers, so the table below lists the usual applications by engine code rather than by marketing name. Engine codes are the reliable check: confirm yours on the vehicle data sticker, the timing cover label or a VIN decode before ordering.
| Make | Model | Years | Engine |
|---|---|---|---|
| VW | Golf VI / GTI, Golf VI R | 2009 – 2013 | 1.8 / 2.0 TSI — CDAA, CCZA, CCZB, CDLC |
| VW | Jetta VI / GLI, Beetle, Eos | 2008 – 2016 | 1.8 / 2.0 TSI — CBFA, CCTA, CCZA |
| VW | Passat B6 / B7, Passat CC, CC | 2008 – 2017 | 1.8 / 2.0 TSI — CDAA, CDAB, CCZA, CCZB |
| VW | Tiguan I, Sharan II, Scirocco III, Transporter T5 | 2008 – 2016 | 1.8 / 2.0 TSI — CAWA, CAWB, CCZC, CCZD |
| VW (China market) | Magotan B7, Passat NMS, CC, Tiguan | 2009 – 2016 | 1.8 / 2.0 TSI — CEAA, CGMA |
| Audi | A4 B8, A4 allroad, A5 8T | 2008 – 2016 | 1.8 / 2.0 TFSI — CDHA, CDHB, CDNB, CDNC, CAEB, CPMA |
| Audi | A3 8P, TT 8J, Q3 8U, Q5 8R, A6 C7 2.0 TFSI | 2008 – 2015 | 1.8 / 2.0 TFSI — CCZA, CESA, CETA, CPSA, CHJA |
| Skoda | Octavia II RS, Superb II, Yeti | 2008 – 2015 | 1.8 / 2.0 TSI — CDAA, CDAB, CCZA |
| SEAT | Leon II Cupra, Altea, Alhambra, Exeo | 2007 – 2015 | 1.8 / 2.0 TSI — CDAA, CCZB, CCZA, CDND |
Shipping and packing
Orders leave within one to two working days of cleared payment, packed with foam protection so the machined journal bores and the mesh screen arrive undistorted. Tracking is emailed when the parcel is handed to the carrier. Customs charges, where they apply, are the buyer’s responsibility.
Condition & warranty
Brand new, twelve months warranty against manufacturing defects. The warranty covers the bridge as supplied; it does not cover damage from incorrect torque, a blocked oil circuit that was not cleaned, or engine damage that existed before the part was fitted. If a part arrives faulty, send us photos and the fault scan before returning anything.
Wholesale
Tiered pricing for 1 pc, 5 pcs and 20 pcs is shown below. Workshops and resellers stocking EA888 timing and lubrication parts should ask for a combined quote — we price mixed orders of bridges, camshaft adjusters, timing chains and service parts together.
