03L145215L 03L145215G Brake Vacuum Pump Gasket: Diagnosis and OE Fitment Guide

QUICK ANSWER

A confirmed oil leak at the brake-vacuum-pump mounting flange or a damaged pump-to-cylinder-head seal should be confirmed through physical inspection and the workshop checks appropriate to this component before a replacement part is ordered. The same symptom can have more than one cause, so compare the installed component, all OE references, connections and vehicle information.

WHAT THIS PART DOES

The Brake Vacuum Pump Gasket seals the brake vacuum pump mounting interface to the cylinder head while preserving the specified oil and mechanical separation at the flange. Its role does not prove that it is the cause of a customer complaint; diagnosis must connect the observed fault to this component.

SYMPTOM SNAPSHOT

• Fresh engine oil is traced to the vacuum-pump-to-cylinder-head flange
• Gasket coating is split, hardened or displaced after pump removal
• Oil residue returns at the flange after nearby leak paths are cleaned and excluded
• Pump mounting face or gasket is visibly damaged during inspection

These symptoms are diagnostic clues, not a guarantee that this part has failed.

DIAGNOSIS BEFORE ORDERING

1. Do not road-test a vehicle with uncertain brake assistance; test vacuum supply separately using the applicable procedure
2. Clean the area and trace oil from the highest fresh point before removing the pump
3. Inspect the pump body, vacuum hose, check valve and pump output instead of assuming the flange gasket causes a vacuum fault
4. Check both mating faces for warping, scratches, corrosion and retained gasket material
5. Compare the complete two-port gasket outline, every bolt and slot location, pump revision, engine code and VIN before ordering

OEM REFERENCE

• 03L145215L
• 03L145215G

Every verified OE reference from the product record is retained. Revision letters and alternate numbers must not be discarded during comparison.

OE-SPECIFIC BUYING CHECK

• Volkswagen official parts information identifies 03L145215L as the brake-servo vacuum-pump gasket for specified Amarok applications, not an exhaust gasket.
• Parts catalogs record 03L145215G as the previous revision superseded by 03L145215L.
• Parts and gasket catalogs identify 03L145215G as an earlier vacuum-pump sealing gasket used on specified Amarok 2.0 TDI configurations and associate it with later 03L145215L.
• The gasket seals the pump mounting flange; brake-assist or vacuum complaints still require a separate pump-output, hose, check-valve and booster diagnosis.
• Compare the two large openings, complete perimeter, bolt-hole and slot positions, pump casting and engine code before ordering, then confirm fitment by VIN.

VEHICLE APPLICATION REFERENCES

• VOLKSWAGEN Amarok

Model names are reference points only. Production date, engine, market specification and connector changes can affect compatibility.

WHEN REPLACEMENT IS JUSTIFIED

Replacement is reasonable when inspection or workshop testing confirms damage or a functional failure that matches the role of this component. If the evidence conflicts with the product function, continue diagnosis instead of replacing the part.

RELATED PARTS TO INSPECT

• Vacuum pump housing and output test
• Brake-booster vacuum hose and one-way check valve
• Cylinder-head mating face and nearby engine-oil leak paths

VIN CHECK

Confirm fitment using OE number and VIN before ordering.

For fitment questions, share the OEM part number, VIN number, or vehicle information with our team before ordering.

CHECK THE PART AND OE DETAILS

Review 03L145215L / 03L145215G product images and fitment details.

WORKSHOP AND BULK ORDERS

Repair shops and distributors can send an OE list, quantities and vehicle information for fitment review and bulk-order support.