Select your vehicle
  1. Home
  2. Audi
  3. Coolant Expansion Tank

Audi Coolant Expansion Tank Parts
Audi VW Engine Coolant Reservoir Nut - Genuine Audi VW 811807577C

Audi VW Engine Coolant Reservoir Nut - Genuine Audi VW 811807577C

allroad, A6 Quattro, S5, A3 Sportback e-tron, RS7, & more
Genuine VW Audi
Available
In Stock
$2.19
QTY
Audi VW Engine Coolant Reservoir Bolt - Genuine Audi VW N10714802

Audi VW Engine Coolant Reservoir Bolt - Genuine Audi VW N10714802

M6x18
SQ8, RS Q8, Q7, SQ7, Q8
Genuine VW Audi
Available
Ships in 3 business days
$0.59
QTY
Audi Engine Coolant Reservoir - Genuine Audi 4K0121405AC

Audi Engine Coolant Reservoir - Genuine Audi 4K0121405AC

A7 Sportback, RS7 Sportback, S6, S7 Sportback, & more
Genuine Audi
Available
Ships in 3 business days
Ships Free
$103.99
QTY
OE
Audi R8 Coolant Cap - OE Supplier 420121321

Audi R8 Coolant Cap - OE Supplier 420121321

R8 Expansion Tank Upgrade
R8
OE Supplier
Backordered
No ETA
$46.99
OEM
Audi VW Expansion Tank Cap - Rein CPE0039

Audi VW Expansion Tank Cap - Rein CPE0039

Arteon, Atlas, Atlas Cross Sport, Golf, & more
Rein
1 Rating
Backordered
No ETA
$13.79
OEM
Audi VW Coolant Expansion Tank Cap - Calorstat 1C9121321

Audi VW Coolant Expansion Tank Cap - Calorstat 1C9121321

Passat, Q7, Touareg
Calorstat
Unavailable
No Longer Available
$13.19
VW Engine Coolant Expansion Tank - Vaico V10-8285

VW Engine Coolant Expansion Tank - Vaico V10-8285

A6 Quattro, A6
Vaico
Not available
This product is not available for sale
$44.79
VW Engine Coolant Expansion Tank - Vaico V10-8284

VW Engine Coolant Expansion Tank - Vaico V10-8284

A4, A4 Quattro
Vaico
Not available
This product is not available for sale
$41.19
Audi Engine Coolant Reservoir - Genuine Audi 4H0121403M

Audi Engine Coolant Reservoir - Genuine Audi 4H0121403M

A8 Quattro
Genuine Audi
Backordered
No ETA
$126.99
Audi Expansion Tank - Genuine Audi 4B3121403B

Audi Expansion Tank - Genuine Audi 4B3121403B

A6 Quattro, S6
Genuine Audi
1 Rating
Unavailable
No Longer Available
$114.99
Audi Engine Coolant Reservoir Bracket - Genuine Audi 80A145879AB

Audi Engine Coolant Reservoir Bracket - Genuine Audi 80A145879AB

Position 12 in the Diagram
Q5, Q5 PHEV
Genuine Audi
Backordered
No ETA
$97.99
Audi Engine Coolant Expansion Tank - Genuine Audi 8D0121403D

Audi Engine Coolant Expansion Tank - Genuine Audi 8D0121403D

A4, A4 Quattro
Genuine Audi
Unavailable
No Longer Available
$75.99
Audi Engine Coolant Reservoir - Genuine Audi 8K0121405A

Audi Engine Coolant Reservoir - Genuine Audi 8K0121405A

Position 9 in the Diagram
A5 Quattro
Genuine Audi
Backordered
No ETA
$40.89
Audi Engine Coolant Reservoir - Genuine Audi 4N0121405R

Audi Engine Coolant Reservoir - Genuine Audi 4N0121405R

A8 Quattro
Genuine Audi
Backordered
No ETA
$237.99
Audi Engine Coolant Reservoir - Genuine Audi 4E0121403H

Audi Engine Coolant Reservoir - Genuine Audi 4E0121403H

S8, A8 Quattro
Genuine Audi
Backordered
No ETA
$164.99
Audi Engine Coolant Reservoir Bracket - Genuine Audi 4K1121305

Audi Engine Coolant Reservoir Bracket - Genuine Audi 4K1121305

A7 Sportback, S7 Sportback, S6, A6 allroad, & more
Genuine Audi
Backordered
No ETA
$16.39

Get help answering any questions you have

Contact Us
Special offers, news, & promos
© FCP Euro 2026. All rights reserved.  
Version: a5eae8431 : 53a503b7d08d6a1584b68d28b71f3ec1f789121f