Description
Check part compatibility by using our vehicle filter options below. If you find your car, this part is compatible.
The Coolant Expansion Tank (Part No. 4R838A080AC) is a vital component of your Jaguar’s engine cooling system — designed to hold excess coolant that expands as the engine heats up and return it to the system as it cools. This radiator coolant reservoir is a direct fit replacement for select Jaguar XF X250 (2008-2015) 2.7 D/3.0 D diesel models originally equipped with this OEM part number. Maintaining the correct coolant level helps ensure your engine operates within its ideal temperature range, prevents overheating and protects expensive engine components from heat-related damage.
OEM Number: 6W838D065AB, 6W838D066AA, XR850837, C2P17700, JDE34572, 4R838A080AC, 4R838A080AB, 4R838A080AE, 4R838A080AD, 4R838101AB
COOLANT EXPANSION TANK FOR JAGUAR XF X250 XJ X351 2.7 3.0 C2Z11668 BRAND NEW
Quantity : 1
| Make | Model | Variant | Type | Engine | Chassis | Year |
|---|---|---|---|---|---|---|
| Jaguar | XF | Diesel Estate | 3.0 D | 2993cc 177KW 241HP 306DT(AJTDV6) | RWD — X250 | 2012-2014 |
| Jaguar | XF | Diesel Estate | 3.0 D | 2993cc 202KW 275HP 306DT(AJTDV6) | RWD — X250 | 2012-2014 |
| Jaguar | XF | Diesel Saloon | 2.7 D | 2720cc 152KW 207HP 7G(AJTDV6) | RWD I X250 | 2008-2015 |
| Jaguar | XF | Diesel Saloon | 3.0 D | 2993cc 155KW 211HP 306DT(AJTDV6) | RWD I X250 | 2009-2015 |
| Jaguar | XF | Diesel Saloon | 3.0 D | 2993cc 177KW 241HP 306DT(AJTDV6) | RWD I X250 | 2009-2015 |
| Jaguar | XF | Diesel Saloon | 3.0 D | 2993cc 202KW 275HP 306DT(AJTDV6) | RWD I X250 | 2009-2015 |
| Jaguar | XF | Petrol Saloon | 3.0 | 2967cc 175KW 238HP FG(AJV6) | RWD I X250 | 2008-2015 |
| Jaguar | XJ | Diesel Saloon | 3.0 SDV6 | 2993cc 202KW 275HP 306DT(AJTDV6) | RWD — X351 | 2009-2016 |
| Jaguar | XJ | Diesel Saloon | 3.0 SDV6 | 2993cc 221KW 300HP 306DT(AJTDV6) | RWD — X351 | 2015-2024 |
| Jaguar | XJ | Petrol Saloon | 3.0 V6 | 2967cc 175KW 238HP AJV6(3.0 Liter) | RWD — X351 | 2011-2024 |
| Make | Model | Variant | Type | Engine | Chassis | Year |
Our SKU: TJAG4R838A080AC_313
All our Coolant Expansion Tank For Jaguar Xf I X250 Xj X351 2008-2016 3.0 D 4R838A080Ac are OEM quality and reliable after market car parts. This Coolant Expansion Tank For Jaguar Xf I X250 Xj X351 2008-2016 3.0 D 4R838A080Ac is specifically compatible with Jaguar: XF, XJ, .
Please use our make-model-year tool to check this part’s compatibility with your vehicle. However, please note that our tool is for reference only and we recommend that you check the part number on your old unit prior to purchasing.
If you are still not sure about the compatibility of this part to your vehicle, please supply us with the VIN number or Reg number in our live chat or contact form! You can also find details on our purchasing & shipping guide here.
Key Benefits
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Direct OEM Replacement: Designed to match Jaguar’s original 4R838A080AC coolant tank specifications for a perfect fit and reliable performance.
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Improves Cooling System Efficiency: Stores excess coolant under heat and returns it as temperatures cool, helping regulate system pressure and maintain optimal engine temperatures.
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Restores Leak-Free Operation: A cracked or degraded expansion tank can lead to coolant loss and overheating — replacing it restores system integrity.
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Compatible with Common Jaguar Engines: Widely used on Jaguar XF X250 2.7D and 3.0D diesel engines from around 2008-2015, making it ideal for routine cooling-system repairs.
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Helps Prevent Overheating: With a functional reservoir, coolant levels stay consistent and pressure remains stable — reducing the risk of engine overheating or damage under load.
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Durable Plastic Construction: Built to withstand engine-bay heat and pressure cycles for lasting performance.
Frequently Asked Questions (FAQs)
Q1: What does a coolant expansion tank do?
A: It holds excess engine coolant that expands when the engine warms up and feeds it back into the cooling system as the engine cools — helping maintain proper pressure and fluid levels.
Q2: Which Jaguar models use part number 4R838A080AC?
A: This expansion tank is commonly fitted to Jaguar XF X250 diesel models (especially 2.7 D and 3.0 D) built roughly between 2008 and 2015.
Q3: How do I know if my expansion tank needs replacing?
A: Signs include visible cracks, coolant leaks, low coolant warnings, engine overheating or discoloured/pink tank plastic – all indicators that the reservoir or cap has failed.
Q4: Does this tank include the cap and sensor?
A: Some versions include the sensor port and cap depending on the supplier — always check the product description to confirm what’s included.
Q5: Can I fit this myself?
A: Yes – fitting an expansion tank is generally straightforward: drain some coolant, disconnect hoses, remove the old tank, and secure the new one. However, always work on a cool engine and consider professional fitting if you’re unsure.
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