2012-2015 Volkswagen Passat Thermostat 03L121111Q
OEM Part #: 03L-121-111-Q (03L121111Q)
This page covers one exact OEM part number. Every unit we stocked has sold.
We may be able to get another
Used OEM parts are one-of-a-kind. We sometimes get another when we dismantle a matching vehicle, but we can’t say when — browse what’s in stock now:
Other Thermostat / Thermostat Housing that may fit your vehicle
Engine Coolant Thermostat
Thermostat
Thermostat / Water Pump Assembly
Thermostat Housing
Thermostat Housing / Cover
Thermostat Housing Cover
- Genuine OEM — real photos
- 30-day returns on eligible parts
- eBay Top Rated · 100,000+ positive ratings
- Ships from our own indoor warehouse
This genuine OEM thermostat, part number 03L121111Q, is designed for 2012-2014 Volkswagen Passat models equipped with the 2.0L L4 Diesel engine. The thermostat plays a critical role in regulating engine temperature, ensuring optimal performance and efficiency. Common issues such as overheating or erratic temperature readings may indicate a worn or damaged thermostat that requires immediate replacement. This factory-original part directly substitutes the thermostat unit, providing precise fitment and reliability. Compatible vehicles also include the TDI SE and TDI SEL Premium trims. Remember, using authentic OEM parts like this one ensures your vehicle operates at its best.
Specifications
| Fits Vehicle Model | Passat |
| Fits Vehicle Make | Volkswagen |
| OEM Part No | 03L-121-111-Q (03L121111Q) |
| Category | Radiator / Coolant |
Compatible Vehicles
Fits 4 vehicle configurations across 1 make, 2012-2015.
View all 4 vehicle configurations — 4 with fitment notes
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2012 | Volkswagen | Passat | Sedan | 2.0L l4 Diesel Turbo | For Vehicles with Engine Code(s) CKRA |
| 2013 | Volkswagen | Passat | Sedan | 2.0L l4 Diesel Turbo | For Vehicles with Engine Code(s) CKRA |
| 2014 | Volkswagen | Passat | Sedan | 2.0L l4 Diesel Turbo | For Vehicles with Engine Code(s) CKRA |
| 2015 | Volkswagen | Passat | Sedan | 2.0L l4 Diesel Turbo | For Vehicles with Engine Code(s) CKRA |