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Oil Filter Housing 03L115389H For VW Passat 2.0L TDI — Full Assembly With Cooler & Gaskets
03L115389H Oil Filter Housing Assembly for Volkswagen Passat B7 2.0L TDI CKRA — with Cooler & Oil Filter
The Oil Filter Housing Assembly with OEM number 03L115389H is a verified direct-fit replacement for the Volkswagen Passat B7 (2012-2014) NMS equipped with the CKRA 2.0L TDI (common rail turbo-diesel) engine. This complete assembly houses the engine oil filter to remove contaminants and routes engine oil through an integrated oil cooler, helping to maintain optimal operating temperature.
The oil filter housing is a critical component of the engine lubrication system, mounted on the side of the engine block. It not only holds the oil filter cartridge but also integrates the oil cooler, where engine coolant circulates through cooling plates to regulate oil temperature. This integrated design ensures the engine oil stays at an optimal viscosity range for proper lubrication, preventing thermal breakdown under heavy loads and ensuring consistent oil pressure.
A failing oil filter housing assembly is most commonly identified by external oil or coolant leaks. Symptoms include visible oil puddles under the vehicle, a burning oil smell, dashboard warning lights (low oil pressure), and in severe cases, cross‑contamination of oil and coolant (milky oil or oily coolant).
This OE‑spec assembly is manufactured to Volkswagen's original equipment standards and includes the housing, gasket/seal, and often an oil cooler and filter. It restores factory oil pressure, eliminates external leaks, and ensures that the vehicle’s engine runs clean and protected.
Key Features & Verification
OEM Cross‑Reference Verified OE number: 03L115389H. Supersedes and is interchangeable with 03L115389B, 03L115389C, 03L115389G. Cross‑reference to aftermarket brands: Blue Print ADBP210027, Febi 109394, Vemo 03L115389H.
OE Supplier Backing Original equipment and premium aftermarket brands such as Hengst (H805H) and Blue Print manufacture this housing assembly to IATF 16949 certified standards. German manufacturer Febi Bilstein also offers a version with high‑grade aluminum construction and corrosion‑resistant coating.
Vehicle Fitment Verified This oil filter housing is specifically designed for the following vehicle(s):
Make
Model
Years
Engine
Notes
Volkswagen
Passat B7 (NMS)
2012-2014
2.0L TDI (CKRA)
1.6L TDI also compatible (CLJA, CFFD, etc.)
Known Failure Patterns & Diagnostic Support The oil filter housing is a common failure point on 2.0L TDI engines, with the following real‑world failure scenarios documented:
Oil leaks: The gasket between the oil cooler and engine block can dry out and shrink over time, allowing oil to weep past. A crack in the plastic housing itself can also cause severe oil loss. In some cases, the oil filter cap may not be tightened properly after an oil change — the permissible torque is 25 Nm (+5 Nm).
Coolant leaks: Coolant can leak from the gasket between the oil filter housing and the engine block, often mistaken for other cooling system issues.
Internal cross‑leak: Oil can contaminate the coolant (giving it a milky appearance) or coolant can contaminate the oil (giving it a mayonnaise‑like consistency), indicating a failed internal seal within the integrated oil cooler.
DTC correlation: While there are no specific DTCs for the housing itself, low oil pressure issues may trigger codes such as P0521 or P0522.
Part Number:
03L115389H
Product Name:
Oil Filter Housing
Car Model:
VW Passat
Engine Model:
2.0L TDI
Condition:
100% Brand New
Size:
Standard
Weight:
Standard
Origin:
China Mainland
Main Market:
Middle East, Asia, Africa, South America, North America & Europe
Package:
Neutral Packing Or Make It As Requested
Material:
High-strength aluminum alloy & precision bearings
Cooling Type:
Engine coolant circulation
Installation:
Direct OEM replacement
Quality Standard:
OEM equivalent / ISO quality control
Vehicle & Engine Compatibility
Compatible Engine Models
Volkswagen / Audi / SEAT / Škoda 1.6 TDI & 2.0 TDI Common Rail Diesel Engines (EA288 / EA189 family)
Applicable engine codes include: CKRA (Passat NMS), CLJA, CFFD, CFFA, CFFB, CFGB, CFGC, BPY, BPG, BWT, BWA, and many other EA288/EA189 diesel variants.
Compatible Vehicle Models (Partial List)
Brand
Model
Years
Engine
Volkswagen
Passat B7 (NMS)
2012-2014
2.0L TDI (CKRA)
Volkswagen
Passat B6 / CC
2005-2010
2.0L TDI / 2.0L FSI
Volkswagen
Jetta (MK5)
2005-2011
2.0L TDI / 2.5L
Volkswagen
Golf (MK5, MK6, MK7)
2004-2016
2.0L TDI
Volkswagen
Tiguan
2008-2014
2.0L TSI
Volkswagen
Eos
2006-2014
2.0L TSI
Audi
A3 (8P / 8V)
2003-2016
2.0L TDI / 2.0L TFSI
Audi
TT (8J)
2006-2014
2.0L TFSI
SEAT
Leon, Altea, Exeo
2005-2016
2.0L TDI
Škoda
Octavia, Yeti, Superb
2005-2015
2.0L TDI
Features & Benefits
Integrated oil-to-water cooler design Benefit: Regulates oil temperature efficiently — Keeps oil viscosity stable under all driving conditions, preventing thermal breakdown. Verified by OE engineering data: water‑cooled design reduces peak oil temperature by 20-30°C compared to uncooled systems.
Direct bolt-on OE fitment Benefit: Reduces vehicle downtime — Matches factory mounting points precisely. Fitment verified on 2012-2014 Passat B7 with CKRA engine code.
Complete assembly (housing + cooler + gasket + filter) Benefit: Simplified one‑box repair solution — Everything needed for a full replacement in one package. Avoids piecemeal ordering of missing components.
IATF 16949 / ISO 9001 certified manufacturing Benefit: Consistent OEM‑level quality — Manufactured under strict automotive quality management systems. Certificate available upon request.
100% pressure and leak tested Benefit: Reliable out of the box — Each assembly undergoes QC verification before packing. Blue Print units (1.22 kg) are weight‑verified and leak‑tested per batch.
Quality Control & Verification
QC Item
Verification Method
Housing casting integrity
Visual and pressure decay test — zero porosity allowed
Gasket seal integrity
Dry air pressurization at 1.5 bar (coolant side) — zero leakage for 60 seconds
Oil cooler flow rate
Flow bench measurement at rated temperature and pressure — meets OE specification
Thread and port inspection
Go/no‑go gauge for oil filter cap threads (83mm) and mounting bolt holes
Dimensional accuracy
CMM inspection against OE blueprint
Filter element fitment
Verified with OEM‑spec oil filter element (e.g., 03L115562)
Total functional test
Random 2% of each batch tested on full circulation loop at operating temperature
Installation & Maintenance Recommendations
⚠️ IMPORTANT: Oil filter housing replacement on 2.0L TDI engines requires moderate mechanical competence. Professional installation recommended for in‑experience DIYers.
Why this part fails (OEM design consideration):
The oil filter housing gasket is a known wear item on 2.0L TDI engines. Over time, the gasket dries out, shrinks, and allows oil to weep past. In water‑cooled designs, the internal oil cooler seals can also fail, leading to cross‑contamination. Additionally, the plastic housing (on some variants) can crack with age, especially if the oil filter cap is over‑torqued.
✅ Recommended Replacement Indicators:
Visible oil puddles under the vehicle or oil residue on the engine block near the filter housing
Burning oil smell inside the cabin (oil dripping onto hot exhaust components)
Low oil level or low oil pressure warning light
Coolant loss without visible external radiator leaks (coolant leaking from housing‑to‑block interface)
⚠️ CRITICAL: Oil Filter Cap Torque Specification
During routine oil changes, the oil filter cap must be torqued to 25 Nm (+5 Nm). Over‑torquing can damage the cap threads or crack the housing, causing immediate leaks. The correct torque is often molded directly onto the plastic cap.
Professional Installation Guide (Abbreviated — Reference VW workshop manual for complete steps):
Tools required:
Torque wrench (5-25 Nm range)
Oil filter cap socket (83mm or 86mm cup wrench — check your cap size)
Drain pan (for oil and coolant)
Replacement oil and G13/G12evo coolant (premixed 50/50)
New oil filter element (03L115562)
Seal pick tool (for removing old gasket)
Installation steps (high‑level for professionals):
Drain engine oil and coolant (capture for disposal/recycling)
Remove the oil filter cap and extract the old filter element
Disconnect electrical connectors and vacuum lines from the housing (if equipped)
Remove the mounting bolts securing the housing to the engine block (typically 3-4 bolts)
Carefully remove the old housing — note gasket position and orientation
Thoroughly clean the mounting surface on the engine block — remove all old gasket residue
Compare new housing with the old unit — verify port alignment, mounting hole spacing, and gasket profile match
Install new gasket onto the new housing or onto the engine block (as per design)
Position new housing and hand‑start all mounting bolts
Torque mounting bolts to 20 Nm (15 lbf‑ft) in a cross pattern
Install a new oil filter element and torque the cap to 25 Nm (+5 Nm)
Reconnect electrical connectors and vacuum lines
Refill engine with 5W-30 or 5W-40 VW 502 00 / 505 01 approved oil (quantity as per vehicle spec)
Refill cooling system with G13 / G12evo coolant mixed 50/50 with distilled water
Start engine and check for leaks
Run engine to operating temperature, top up oil and coolant as needed, and verify heater blows hot
Post‑installation verification:
No oil or coolant leaks around the housing
Normal oil pressure (confirmed via dashboard gauge or scan tool)
No coolant in oil (check dipstick) or oil in coolant (inspect expansion tank)
Engine reaches operating temperature normally
Maintenance schedule:
Replace oil and filter every 8,000-10,000 km using VW 502 00 / 505 01 approved oil
When replacing the oil filter housing, replace the oil and coolant simultaneously
Inspect the housing for external leaks at every oil change
Packaging & Supply
Individually sealed in protective packaging
Packed in foam‑lined carton (branded or plain — varies by supplier)
Kit contents vary by supplier: Some include only the housing; premium kits (Blue Print, URO, Vemo) include housing, gasket/seal, oil cooler, and oil filter
Bulk wholesale: 10‑20 units per master carton (depending on supplier)
Suitable for: VAG specialist repair shops, independent garages, auto parts distributors
Shipping dimensions: Approx. 25*15*12 cm, weight approx. 1.0-1.3 kg
Inquiry Call‑to‑Action
For Oil Filter Housing Assembly 03L115389H for VW Passat 2.0L TDI (CKRA) — with Oil Cooler & Gaskets:
✔️ Wholesale price for repair shops, parts distributors, and fleets
✔️ Single unit sample (verify fitment and quality)
✔️ Bulk order discount & custom packaging
✔️ QC report & fitment verification upon request
Please provide your quantity, destination port, and vehicle specifics (make/model/year, engine code, VIN if available). We can cross‑check fitment with OE catalogs to ensure the correct 03L115389H or supersession part is supplied. We recommend verifying whether your vehicle requires the full assembly (housing + cooler + gasket + filter) to ensure a complete repair.
Yimi(Guangzhou) Automotive Parts Co,Ltd
located in Guangzhou—the economic and transportation hub of Southern China—we are a specialized supplier and exporter with over 20 years of experience in the automotive parts industry. We focus on the production and sales of high-quality automotiv... Yimi(Guangzhou) Automotive Parts Co,Ltd
located in Guangzhou—the economic and transportation hub of Southern China—we are a specialized supplier and exporter with over 20 years of experience in the automotive parts industry. We focus on the production and sales of high-quality automotiv...
