The 06D 121 132C coolant hose flange is an OE-quality direct-fit replacement for the Audi A4 B7 2.0T. Engineered for precise fitment at the rear of the engine, it houses the coolant temperature sensor and restores a leak-free seal.
$20.00
The 06D 121 132C coolant hose flange (OE) is a genuine-spec replacement component used on the Audi A4 B7 2.0T. Located at the rear of the engine, this flange serves as a critical connection point in the cooling circuit, providing secure hose interfaces and housing the engine coolant temperature sensor to ensure proper coolant routing and temperature monitoring for stable engine operation.
Because it operates under constant heat cycling and cooling system pressure, the original plastic flange can become brittle over time. Cracks, warped sealing surfaces, or leaks at the hose connections lead to coolant seepage, low-coolant warnings, and potential overheating. Replacing the worn unit with an OE-quality 06D 121 132C restores proper sealing and dependable cooling system performance.
A failing coolant hose flange on the Audi A4 B7 2.0T typically presents as coolant seepage or dried residue at the rear of the engine near the flange body. A persistent coolant smell after driving, unexplained drops in reservoir level, or an illuminated low-coolant warning are further warning signs. Physical inspection may reveal a visibly cracked or brittle plastic housing, particularly at the hose ports or around the temperature sensor bore. A fully failed flange can result in sudden, rapid coolant loss and engine overheating. Early replacement prevents more extensive and costly repairs.
OEM Reference: 06D 121 132C; supersedes 06D 121 132, 06D 121 132A, 06D 121 133A
OE-quality fit and sealing performance
Rear-engine-mounted design housing the coolant temperature sensor
Molded multi-port construction for proper coolant distribution and hose alignment
Heat- and coolant-resistant composite construction
Designed to provide secure, leak-free hose connections under system pressure
Replace any associated O-rings, seals, and hose clamps during installation for best results. Refill with the correct VW/Audi-approved coolant and properly bleed the cooling system after service. Inspect nearby hoses and plastic fittings; replacing aging components together helps prevent repeat leaks.
Always verify fitment by VIN before ordering.
06D 121 132C
06D 121 132
06D 121 132A
06D 121 133A
| Weight | 0.35 lbs |
|---|---|
| Dimensions | 6.0 × 5.0 × 4.0 in |
| Year | Make | Model | Engine | Notes |
|---|---|---|---|---|
| 2005-2009 | Audi | A4 | 2.0L |
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