{"product_id":"caa-transporter-t5-1-cylinder-head-2-0-tdi-03l103373g","title":"CAA Transporter T5.1 Cylinder Head, 2.0 TDI 03L103373G","description":"\u003cp\u003e#loc21\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eGood condition.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eGenuine used Volkswagen Transporter T5.1 2.0 TDI cylinder head, casting \/ OE reference 03L103373G. This aluminium cylinder head is designed for the Common Rail 2.0 TDI engine family and houses critical upper-engine components including the valves, camshafts, injectors and associated lubrication and cooling passages.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003ePart Number \/ Casting Number: 03L103373G\u003c\/p\u003e\u003cp\u003eVW OE Reference: 03L 103 373 G\u003c\/p\u003e\u003cp\u003ePart Type: Engine Cylinder Head \/ Cylinder Head Assembly\u003c\/p\u003e\u003cp\u003eEngine Type: 2.0 TDI Common Rail\u003c\/p\u003e\u003cp\u003eEngine Family: CAA-series\u003c\/p\u003e\u003cp\u003eKnown Application: CAAA\u003c\/p\u003e\u003cp\u003eCAAA Output: 62 kW \/ 84 PS\u003c\/p\u003e\u003cp\u003eFuel Type: Diesel\u003c\/p\u003e\u003cp\u003eEngine Generation: EA189-family 2.0 TDI application\u003c\/p\u003e\u003cp\u003eMaterial: Aluminium Alloy\u003c\/p\u003e\u003cp\u003eManufacturer: Volkswagen \/ VAG\u003c\/p\u003e\u003cp\u003eCondition: Genuine used part\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eCompatibility\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eSuitable for selected:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Volkswagen Transporter T5.1 – 2009\/2010–2015\u003c\/p\u003e\u003cp\u003e* Volkswagen Caravelle T5.1\u003c\/p\u003e\u003cp\u003e* Volkswagen Multivan T5.1\u003c\/p\u003e\u003cp\u003e* Volkswagen California T5.1\u003c\/p\u003e\u003cp\u003e* Transporter panel van\u003c\/p\u003e\u003cp\u003e* Kombi\u003c\/p\u003e\u003cp\u003e* Shuttle \/ passenger versions\u003c\/p\u003e\u003cp\u003e* Chassis cab \/ flatbed versions where the matching engine is fitted\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eKnown engine application:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* CAAA – 2.0 TDI, 62 kW \/ 84 PS\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThe 03L103373G casting is also found on other T5.1 2.0 TDI configurations, so it should not be advertised as a CAAA-only cylinder head.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eCompatibility must be established by comparing the original cylinder-head casting, engine code and component configuration.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eTechnical Information\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThe cylinder head forms the upper section of the engine and seals against the cylinder block using the cylinder-head gasket.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eIt contains or supports critical engine components including:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Intake valves\u003c\/p\u003e\u003cp\u003e* Exhaust valves\u003c\/p\u003e\u003cp\u003e* Valve springs\u003c\/p\u003e\u003cp\u003e* Camshafts\u003c\/p\u003e\u003cp\u003e* Camshaft bearing surfaces\u003c\/p\u003e\u003cp\u003e* Fuel injectors\u003c\/p\u003e\u003cp\u003e* Glow plugs\u003c\/p\u003e\u003cp\u003e* Intake ports\u003c\/p\u003e\u003cp\u003e* Exhaust ports\u003c\/p\u003e\u003cp\u003e* Engine oil galleries\u003c\/p\u003e\u003cp\u003e* Coolant passages\u003c\/p\u003e\u003cp\u003e* Timing-drive components\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThe cylinder head must maintain an accurate seal between the combustion chambers, lubrication system and engine cooling system.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e2.0 TDI Common Rail Cylinder Head Information\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThe T5.1 CAAA uses Volkswagen’s Common Rail diesel injection system.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eUnlike the earlier T5 1.9 TDI PD engines, the Common Rail engine does not use unit injectors driven directly from the camshaft.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThe cylinder head is designed around the Common Rail injector arrangement and associated 2.0 TDI valve train.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eCorrect cylinder-head condition is critical for:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Compression\u003c\/p\u003e\u003cp\u003e* Combustion sealing\u003c\/p\u003e\u003cp\u003e* Valve operation\u003c\/p\u003e\u003cp\u003e* Camshaft alignment\u003c\/p\u003e\u003cp\u003e* Injector installation\u003c\/p\u003e\u003cp\u003e* Engine lubrication\u003c\/p\u003e\u003cp\u003e* Coolant circulation\u003c\/p\u003e\u003cp\u003e* Exhaust and intake sealing\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eCommon Reasons for Cylinder Head Replacement\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eTypical reasons for replacing a cylinder head include:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Cracked cylinder head\u003c\/p\u003e\u003cp\u003e* Overheating damage\u003c\/p\u003e\u003cp\u003e* Warped head surface\u003c\/p\u003e\u003cp\u003e* Cylinder-head gasket failure\u003c\/p\u003e\u003cp\u003e* Coolant loss\u003c\/p\u003e\u003cp\u003e* Compression loss\u003c\/p\u003e\u003cp\u003e* Damaged valve seats\u003c\/p\u003e\u003cp\u003e* Bent or damaged valves\u003c\/p\u003e\u003cp\u003e* Camshaft\/bearing damage\u003c\/p\u003e\u003cp\u003e* Injector bore damage\u003c\/p\u003e\u003cp\u003e* Damaged glow plug threads\u003c\/p\u003e\u003cp\u003e* Damaged injector threads or mounting points\u003c\/p\u003e\u003cp\u003e* Internal coolant\/oil leakage\u003c\/p\u003e\u003cp\u003e* Previous timing-system failure\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eCommon Symptoms of Cylinder Head Problems\u003c\/p\u003e\u003cbr\u003e\u003cp\u003ePotential symptoms can include:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Coolant loss\u003c\/p\u003e\u003cp\u003e* Cooling system becoming excessively pressurised\u003c\/p\u003e\u003cp\u003e* White exhaust smoke\u003c\/p\u003e\u003cp\u003e* Engine overheating\u003c\/p\u003e\u003cp\u003e* Poor compression\u003c\/p\u003e\u003cp\u003e* Difficult starting\u003c\/p\u003e\u003cp\u003e* Rough running\u003c\/p\u003e\u003cp\u003e* Misfire\u003c\/p\u003e\u003cp\u003e* Oil contamination in coolant\u003c\/p\u003e\u003cp\u003e* Coolant contamination in engine oil\u003c\/p\u003e\u003cp\u003e* Combustion gases entering the cooling system\u003c\/p\u003e\u003cp\u003e* Excessive pressure in the coolant expansion tank\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThese symptoms do not automatically confirm a failed cylinder head.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eA head gasket, EGR cooler, cooling-system component or other engine fault can sometimes produce similar symptoms.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eImportant Diagnostic Information\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eBefore replacing the cylinder head, professional diagnosis is strongly recommended.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eUseful checks can include:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Compression test\u003c\/p\u003e\u003cp\u003e* Cylinder leak-down test\u003c\/p\u003e\u003cp\u003e* Cooling-system pressure test\u003c\/p\u003e\u003cp\u003e* Combustion-gas test of coolant\u003c\/p\u003e\u003cp\u003e* Injector testing\u003c\/p\u003e\u003cp\u003e* Inspection for external coolant leakage\u003c\/p\u003e\u003cp\u003e* Oil\/coolant contamination inspection\u003c\/p\u003e\u003cp\u003e* EGR cooler testing\u003c\/p\u003e\u003cp\u003e* Cylinder-head flatness measurement\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eIf the engine has overheated severely, the cylinder head should be checked for both distortion and cracking.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003ePressure Testing \u0026amp; Skimming\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eA used cylinder head should ideally be professionally inspected before installation.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eDepending on its condition, an engine machine shop may recommend:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Pressure testing\u003c\/p\u003e\u003cp\u003e* Crack testing\u003c\/p\u003e\u003cp\u003e* Surface flatness measurement\u003c\/p\u003e\u003cp\u003e* Skimming\/resurfacing where permitted\u003c\/p\u003e\u003cp\u003e* Valve inspection\u003c\/p\u003e\u003cp\u003e* Valve-seat inspection\u003c\/p\u003e\u003cp\u003e* Valve-guide inspection\u003c\/p\u003e\u003cp\u003e* Camshaft\/bearing inspection\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eDo not assume that a used cylinder head is ready to install unless it has specifically been advertised as tested\/reconditioned.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eIf this particular head has not been pressure tested or skimmed, it should be sold as a genuine used cylinder head rather than described as reconditioned.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eCylinder Head Gasket Information\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eA new cylinder-head gasket should be used during installation.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eCorrect gasket specification\/thickness must be selected according to the engine and piston protrusion\/manufacturer procedure.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThe old head gasket should never be reused.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThe mating surfaces of both the cylinder head and engine block should be inspected carefully before assembly.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eCylinder Head Bolts\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eCylinder-head bolts are subjected to significant clamping loads.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eWhere Volkswagen specifies torque-to-yield \/ stretch bolts, new cylinder-head bolts should be installed rather than reusing the old bolts.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThe correct VW tightening sequence, torque stages and angular tightening procedure must be followed.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eTiming System Information\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eCylinder-head replacement requires disturbance of the engine timing system.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eCorrect camshaft-to-crankshaft timing is essential.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eDuring installation:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Use the appropriate locking tools\u003c\/p\u003e\u003cp\u003e* Set the engine to the specified timing position\u003c\/p\u003e\u003cp\u003e* Follow the VW timing procedure\u003c\/p\u003e\u003cp\u003e* Inspect the timing belt\u003c\/p\u003e\u003cp\u003e* Inspect tensioners and rollers\u003c\/p\u003e\u003cp\u003e* Inspect the water pump where applicable\u003c\/p\u003e\u003cp\u003e* Confirm timing before starting the engine\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eIf the existing timing components have significant mileage or uncertain history, replacing the timing-belt kit and water pump during cylinder-head work is generally sensible.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eValve \u0026amp; Piston Damage\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eIf cylinder-head replacement is required following a timing-belt failure, do not assume the damage is limited to the cylinder head.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eInspect:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Pistons\u003c\/p\u003e\u003cp\u003e* Connecting rods where appropriate\u003c\/p\u003e\u003cp\u003e* Valves\u003c\/p\u003e\u003cp\u003e* Valve guides\u003c\/p\u003e\u003cp\u003e* Camshafts\u003c\/p\u003e\u003cp\u003e* Rocker\/follower components\u003c\/p\u003e\u003cp\u003e* Cylinder bores\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eValve-to-piston contact can cause additional internal engine damage.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eInjector Information\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThe Common Rail injectors mount into the cylinder head.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eWhen transferring injectors:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Keep components clean\u003c\/p\u003e\u003cp\u003e* Inspect injector bores\u003c\/p\u003e\u003cp\u003e* Replace required injector seals\u003c\/p\u003e\u003cp\u003e* Use correct mounting hardware\u003c\/p\u003e\u003cp\u003e* Follow the specified tightening procedure\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eInjectors should be installed according to VW repair information.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eDepending on what components are changed, injector calibration\/correction information may also need to be checked through diagnostic equipment.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eInstallation\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eCylinder-head replacement is a major engine repair and should ideally be carried out by an experienced technician.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eInstallation normally requires:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Removal of intake components\u003c\/p\u003e\u003cp\u003e* Removal of exhaust\/EGR components\u003c\/p\u003e\u003cp\u003e* Removal of fuel-system components\u003c\/p\u003e\u003cp\u003e* Removal of injectors where required\u003c\/p\u003e\u003cp\u003e* Timing-system removal\u003c\/p\u003e\u003cp\u003e* Camshaft\/timing preparation\u003c\/p\u003e\u003cp\u003e* Cooling-system draining\u003c\/p\u003e\u003cp\u003e* Cylinder-head removal\u003c\/p\u003e\u003cp\u003e* Block surface inspection\u003c\/p\u003e\u003cp\u003e* New head gasket\u003c\/p\u003e\u003cp\u003e* New required single-use fasteners\u003c\/p\u003e\u003cp\u003e* Correct timing setup\u003c\/p\u003e\u003cp\u003e* Cooling-system refill and bleeding\u003c\/p\u003e\u003cp\u003e* Engine oil\/filter service where appropriate\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eAll mating surfaces must be clean and prepared according to manufacturer specifications.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eProgramming \/ Coding\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThe bare cylinder head itself requires no programming or coding.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eHowever, diagnostic work may be necessary after installation depending on which fuel-system or electronic components have been removed or replaced.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eStored engine fault codes should be checked after the repair.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eImportant Compatibility Note\u003c\/p\u003e\u003cbr\u003e\u003cp\u003ePlease compare before ordering:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Cylinder-head number – 03L103373G\u003c\/p\u003e\u003cp\u003e* Engine code\u003c\/p\u003e\u003cp\u003e* CAA engine-family configuration\u003c\/p\u003e\u003cp\u003e* Injector arrangement\u003c\/p\u003e\u003cp\u003e* Camshaft configuration\u003c\/p\u003e\u003cp\u003e* Intake and exhaust port arrangement\u003c\/p\u003e\u003cp\u003e* Sensor mounting points\u003c\/p\u003e\u003cp\u003e* EGR connections\u003c\/p\u003e\u003cp\u003e* Coolant connections\u003c\/p\u003e\u003cp\u003e* Production date\u003c\/p\u003e\u003cp\u003e* Components included with the head\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e03L103373G should not be assumed to fit solely because the vehicle is a Transporter T5.1 2.0 TDI.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eSeveral 2.0 TDI engine codes and cylinder-head revisions were used during T5.1 production.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eMatching the 03L103373G casting\/reference and confirming compatibility against the engine code or VIN is strongly recommended.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eCondition\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eGenuine Volkswagen used engine component.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eUnless specifically stated otherwise, this should be considered a used cylinder head and not a remanufactured\/reconditioned unit.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eNormal signs of previous use may include:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e* Oil residue\u003c\/p\u003e\u003cp\u003e* Carbon deposits\u003c\/p\u003e\u003cp\u003e* Coolant staining\u003c\/p\u003e\u003cp\u003e* Surface marks\u003c\/p\u003e\u003cp\u003e* Oxidation\u003c\/p\u003e\u003cp\u003e* General workshop\/removal marks\u003c\/p\u003e\u003cbr\u003e\u003cp\u003ePlease inspect all listing photographs carefully to determine exactly which components are included, such as camshafts, valves, injectors, sensors, brackets or other ancillary parts.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eProfessional inspection, pressure testing and measurement are recommended before installation unless documented testing has already been carried out.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eAny identifying colour\/security markings applied to the part must remain intact in the event of a return.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eIdeal genuine replacement for a cracked, warped or damaged Volkswagen Transporter T5.1 2.0 TDI CAAA \/ CAA-family cylinder head, provided 03L103373G and the engine configuration match the original unit.\u003c\/p\u003e\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e Volkswagen\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty Period:\u003c\/strong\u003e 30 Days\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eType:\u003c\/strong\u003e Cylinder Head\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 03L103373D\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e Germany\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Volkswagen","offers":[{"title":"Default Title","offer_id":54896851845447,"sku":"158260864778","price":350.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/1528\/3527\/files\/10_10a19286-d995-4211-aa17-ce04aedd5bfa.jpg?v=1788624180","url":"https:\/\/spares4repairs.store\/products\/caa-transporter-t5-1-cylinder-head-2-0-tdi-03l103373g","provider":"Spares 4 Repairs","version":"1.0","type":"link"}