HomeBelts and Cooling > Radiators, Coolers and Related ComponentsFebi 21842 Engine Coolant Reservoir
Part #: 21842

Febi 21842 Engine Coolant Reservoir

⚙️ 44 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Audi and Volkswagen, Allroad Quattro, Passat, RS6, A4, A4 Quattro, A6, and A6 Quattro
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Overview of the febi Engine Coolant Reservoir 21842

The febi engine coolant reservoir 21842 is designed for reliable coolant management in select Audi and Volkswagen models. This plastic reservoir features two connections and includes a coolant level sensor, ensuring accurate monitoring of coolant levels for optimal engine performance.

  • Durable plastic construction for corrosion resistance
  • Two connection points for secure hose attachment
  • Equipped with a coolant level sensor for precise monitoring
  • Supplied without a lid for compatibility with original caps
  • Compatible with Audi A4, A4 Quattro, A6, A6 Quattro, Allroad Quattro, RS6, S4, and Volkswagen Passat

Detailed Product Description

The febi 21842 engine coolant reservoir is engineered to meet the cooling system requirements of various Audi and Volkswagen vehicles. Made from durable plastic, it resists corrosion and withstands the thermal stresses of engine operation. The reservoir includes two connection points, facilitating proper integration with the vehicle’s cooling hoses. A built-in coolant level sensor provides real-time feedback to the vehicle’s monitoring system, helping to prevent overheating and maintain engine efficiency. This part is supplied without a lid, allowing the use of the original manufacturer’s cap to ensure a proper seal and fit.

Compatible Vehicles and Applications

  • Engine coolant reservoir replacement for Audi A4 and A4 Quattro models
  • Suitable for Audi A6, A6 Quattro, and Allroad Quattro cooling systems
  • Fits Audi RS6 and S4 models requiring this specific reservoir
  • Compatible with Volkswagen Passat models using this reservoir design

Installation Notes and Tips

  • Ensure the original coolant cap is retained and properly installed, as this reservoir does not include a lid
  • Check all hose connections for secure fitment on the two connection points
  • Verify coolant level sensor connection to the vehicle’s wiring harness for accurate readings
  • Flush the cooling system if necessary before installation to prevent contamination

Quality Assurance and Product Line Information

The febi brand line is known for providing reliable replacement parts that meet or exceed OEM specifications. The febi engine coolant reservoir 21842 is manufactured to strict quality standards, ensuring durability and proper fitment for Audi and Volkswagen vehicles. While no specific warranty information is provided, febi parts typically undergo rigorous testing to maintain consistent performance and safety.

This part fits 44 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2005AudiAllroad QuattroN/A
2005VolkswagenPassatN/A
2004AudiAllroad QuattroN/A
2004AudiRS6N/A
2004VolkswagenPassatN/A
2003AudiAllroad QuattroN/A
2003AudiRS6N/A
2003VolkswagenPassatN/A
2002VolkswagenPassatN/A
2001AudiA4N/A
2001AudiA4 QuattroN/A
2001AudiA6N/A
2001AudiA6 QuattroN/A
2001AudiS4N/AWeight (lbm / kg) 0.6; febi
2001VolkswagenPassatN/A
2000AudiA4N/A
2000AudiA4 QuattroN/A
2000AudiA6N/A
2000AudiA6 QuattroN/A
2000AudiS4N/AWeight (lbm / kg) 0.6; febi
2000VolkswagenPassatN/A
1999AudiA4N/A
1999AudiA4N/AFrom Chassis No.: 8D-W-000 001
1999AudiA4 QuattroN/A
1999AudiA4 QuattroN/AFrom Chassis No.: 8D-W-000 001
1999AudiA6N/AWeight (lbm / kg) 0.6; febi
1999AudiA6 QuattroN/AWeight (lbm / kg) 0.6; febi
1999VolkswagenPassatN/A
1998AudiA4N/A
1998AudiA4N/AFrom Chassis No.: 8D-W-000 001
1998AudiA4 QuattroN/A
1998AudiA4 QuattroN/AFrom Chassis No.: 8D-W-000 001
1998AudiA6N/AWeight (lbm / kg) 0.6; febi
1998AudiA6 QuattroN/AWeight (lbm / kg) 0.6; febi
1998VolkswagenPassatN/A
1997AudiA4N/A
1997AudiA4N/AFrom Chassis No.: 8D-W-000 001
1997AudiA4 QuattroN/AFrom Chassis No.: 8D-W-000 001
1997AudiA6N/AWeight (lbm / kg) 0.6; febi
1997AudiA6 QuattroN/AWeight (lbm / kg) 0.6; febi
1997VolkswagenPassat2.8LV6N/AWeight (lbm / kg) 0.6; febi
1996AudiA4N/AVehicle Identification Number (Vin) From: ******8D*W*000001; febi
1996AudiA4 QuattroN/AVehicle Identification Number (Vin) From: ******8D*W*000001; febi
1996VolkswagenPassat1.9LL4N/AWeight (lbm / kg) 0.6; febi

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.