Shop now and save up to 20% during FCP Euro's Labor Day Sale!

Select your vehicle

  1. Home
  2. Audi
  3. Expansion Tank

Audi A5 Quattro Expansion Tank Parts
OEM
On Sale
Audi Porsche Expansion Tank - Mahle/Behr CRT95000S

Audi Porsche Expansion Tank - Mahle/Behr CRT95000S

A4, A4 Quattro, A5, A5 Quattro, Macan, Q5
Mahle Behr
2 Ratings
Available
Ships in 1 business day
$45.32 $42.60
OEM
Audi Engine Coolant Reservoir - Mahle Behr CRT169000S

Audi Engine Coolant Reservoir - Mahle Behr CRT169000S

A4 Quattro, A5 Quattro, Q5, S4, S5, SQ5
Mahle Behr
Available
In Stock
$39.09
On Sale
Audi Engine Coolant Reservoir - URO Parts 015199

Audi Engine Coolant Reservoir - URO Parts 015199

A4, A4 Quattro, A4 allroad, A5 Quattro, A5 Sportback
URO Parts
Available
In Stock
Ships Free
$70.99 $66.73
On Sale
Audi Coolant Expansion Tank - Febi Bilstein 8K0121405S

Audi Coolant Expansion Tank - Febi Bilstein 8K0121405S

A4 Quattro, A5 Quattro, Q5, S4, S5, SQ5
Febi Bilstein
Available
Ships in 1 business day
$49.69 $44.72
Audi Coolant Expansion Tank - Rein 8K0121405P

Audi Coolant Expansion Tank - Rein 8K0121405P

A5 Quattro, Q5, S5
Rein
1 Rating
Available
In Stock
$44.29
On Sale
Audi Coolant Expansion Tank - Rein 8K0121405Q

Audi Coolant Expansion Tank - Rein 8K0121405Q

A4 Quattro, A5 Quattro, Q5, S4, S5, SQ5
Rein
1 Rating
Available
In Stock
$49.25 $43.34
Audi Porsche Expansion Tank - Rein EPT0153

Audi Porsche Expansion Tank - Rein EPT0153

A4, A4 Quattro, A5 Quattro, Macan, Q5
Rein
2 Ratings
Available
In Stock
$34.89
On Sale
Audi Expansion Tank Vent Hose - Rein CHP0786

Audi Expansion Tank Vent Hose - Rein CHP0786

Connects the coolant reservoir to the radiator
A4, A4 Quattro, A5, A5 Quattro, Allroad
Rein
1 Rating
Available
In Stock
$22.43 $20.64
Audi Engine Coolant Reservoir - Genuine Audi 8K0121405S

Audi Engine Coolant Reservoir - Genuine Audi 8K0121405S

S4, A5 Quattro, A4 Quattro, SQ5, Q5, & more
Genuine Audi
Available
Ships in 3 business days
Ships Free
$182.99
On Sale
Audi Engine Coolant Expansion Tank - Genuine Audi 8K0121403AC

Audi Engine Coolant Expansion Tank - Genuine Audi 8K0121403AC

A4, A4 Quattro, A5, A5 Quattro, Q5
Genuine Audi
Available
In Stock
Ships Free
$93.99 $88.35
On Sale
Audi Engine Coolant Reservoir - Genuine Audi 8W0121405L

Audi Engine Coolant Reservoir - Genuine Audi 8W0121405L

A4, A4 Quattro, A4 allroad, A5 Quattro, A5 Sportback
Genuine Audi
1 Rating
Available
In Stock
Ships Free
$91.26 $73.01
Audi Engine Coolant Reservoir - Genuine Audi 8W0121405K

Audi Engine Coolant Reservoir - Genuine Audi 8W0121405K

A4 Quattro, A4 allroad, A5 Quattro, A5 Sportback
Genuine Audi
Available
In Stock
Ships Free
$69.99
On Sale
Audi Expansion Tank Vent Hose - Genuine Audi 8K0121081BF

Audi Expansion Tank Vent Hose - Genuine Audi 8K0121081BF

Connects the coolant reservoir to the radiator
A4, A4 Quattro, A5, A5 Quattro, Allroad
Genuine Audi
Available
In Stock
$22.72 $18.18
Audi Porsche Expansion Tank - Meyle 1002230015

Audi Porsche Expansion Tank - Meyle 1002230015

A4, A4 Quattro, A5, A5 Quattro, Macan, Q5
Meyle
Unavailable
No Longer Available
$44.69
Audi Engine Coolant Reservoir - URO Parts 8K0121405N

Audi Engine Coolant Reservoir - URO Parts 8K0121405N

w/ Heat Shield
A4 Quattro, A5 Quattro, Q5, S4, S5, SQ5
URO Parts
Backordered
No ETA
$39.29
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

Get help answering any questions you have

Contact Us
Special offers, news, & promos
© FCP Euro 2026. All rights reserved.  
Version: d92907113 : 53a503b7d08d6a1584b68d28b71f3ec1f789121f