







The BG 06J 117 021Q Oil Cooler is a direct-fit OEM-quality replacement engineered for select Volkswagen and Audi applications. It regulates engine oil temperature, prevents thermal breakdown, and protects critical internal components — delivering reliable performance from the first drive.
$77.00
The 06J 117 021Q Oil Cooler by BG is a direct-fit OEM-quality replacement designed to restore proper engine oil temperature regulation on select Volkswagen and Audi applications. Specifically, this oil cooler transfers excess heat from the engine oil into the coolant circuit, preventing oil viscosity breakdown under sustained high-load conditions. Furthermore, the BG 06J 117 021Q Oil Cooler is manufactured to OEM dimensions, ensuring direct fitment with factory coolant connections and mounting hardware — no modifications required.
Oil cooler failures typically develop gradually, so recognizing early warning signs helps prevent costly secondary engine damage. First, milky or foamy oil on the dipstick or inside the oil filler cap strongly indicates coolant is mixing with engine oil through a failed cooler. Additionally, unexplained coolant loss without a visible external leak is another reliable sign of internal seepage. Furthermore, an engine that runs hotter than normal under sustained load — despite an otherwise functional cooling system — can point to a restricted or degraded oil cooler. In more advanced cases, contaminated oil causes accelerated wear on bearings and other precision internal components.
OEM Reference: 06J 117 021Q
Brand: BG — OE-quality aftermarket thermal management components
Precision-engineered to OEM dimensions for direct fitment
Correct port geometry for seamless coolant circuit integration
High-grade materials built to withstand sustained heat cycling and pressure
Factory-spec sealing surfaces for a leak-free installation
Always replace the oil cooler gasket and sealing O-rings at the time of installation — reusing old seals is a leading cause of post-repair leaks. After installation, refill both engine oil and coolant to the correct levels using manufacturer-approved fluids only. Next, run the engine to full operating temperature and inspect all connections carefully for any signs of seepage. Furthermore, monitor oil and coolant levels over the first several driving cycles to confirm the repair is fully sealed. Finally, if coolant contamination was present prior to replacement, flush the engine oil system thoroughly before refilling with fresh oil.
Always verify fitment by VIN before ordering.
Cross Reference Numbers
06J 117 021A
06J 117 021C
06J 117 021H
06J 117 021K
06J 117 021M
| Weight | 1.56 lbs |
|---|---|
| Dimensions | 6 × 5 × 4 in |
| Year | Make | Model | Engine | Notes |
|---|---|---|---|---|
| 2008-2013 | Audi | A3 | 2.0L | |
| 2009-2016 | Audi | A4 | 2.0L | |
| 2010-2014 | Audi | A4 | 2.0L | |
| 2010-2014 | Audi | A5 | 2.0L | |
| 2012-2015 | Audi | A6 | 2.0L | |
| 2015-2018 | Audi | Q3 | 2.0L | |
| 2011-2017 | Audi | Q5 | 2.0L | |
| 2009 | Audi | TT | 2.0L | |
| 2013-2016 | Audi | Allroad | ||
| 2012-2013 | Volkswagen | Beetle | 2.0L | |
| 2009-2017 | Volkswagen | CC | 2.0L | |
| 2009-2016 | Volkswagen | EOS | 2.0L | |
| 2008-2014 | Volkswagen | GTI | 2.0L | |
| 2013 | Volkswagen | Golf | 2.0L | |
| 2008-2010, 2012-2013 | Volkswagen | Jetta | 2.0L | |
| 2008-2010 | Volkswagen | Passat | 2.0L | |
| 2009-2017 | Volkswagen | Tiguan | 2.0L |


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