1K2611349C 1K2611349A Brake Fluid Reservoir Cap for VW Tiguan and Golf: Diagnosis and OE Fitment Guide

QUICK ANSWER

A confirmed cracked, missing or poorly sealing brake-fluid reservoir cap 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 Fluid Reservoir Cap closes the brake-fluid reservoir while supporting the specified sealing and low-fluid sensing interface. 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

• Brake fluid residue or leakage is found around the reservoir cap
• The cap is cracked, damaged, missing or does not seat securely
• The low-fluid sensor in the cap or its connector is damaged
• The cap cannot maintain the intended reservoir seal after the reservoir and fluid level are checked

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

DIAGNOSIS BEFORE ORDERING

1. Inspect the cap, reservoir neck, seal and low-fluid sensor or connector for damage or contamination
2. Distinguish a cap fault from a leaking reservoir, master cylinder, hose or brake-system component
3. Compare cap thread or bayonet interface, seal, sensor, connector and every OE suffix
4. Confirm brake-reservoir version, vehicle equipment, production date and VIN before ordering
5. Use only the specified brake fluid and prevent contamination during replacement
6. After installation, confirm secure seating, correct fluid level and absence of leaks; test braking safely

OEM REFERENCE

• 1K2611349C
• 1K2611349A

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

VEHICLE APPLICATION REFERENCES

• VOLKSWAGEN Tiguan
• VOLKSWAGEN Golf
• VOLKSWAGEN Passat
• VOLKSWAGEN Sharan

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

• Brake-fluid reservoir, master cylinder and sealing interface
• Low-fluid sensor, connector and wiring
• Brake-fluid level, leaks and hydraulic system inspection

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 1K2611349C / 1K2611349A 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.