CAR Coolant Expansion Tank / Coolant Reservoir

Coolant expansion tank: common defects and their signs

  1. Corrosion and clogging of the expansion tank cap valve.
    • Temperature of the engine increases.
    • The passenger compartment warms up insufficiently during winter time.
    • Smoke appears from under the hood.
  2. Valve jamming.
    • Pressure in the cooling system increases.
    • Pipes and clamps crack.
    • The tank may inflate or explode.
  3. Tank body cracking.
    • Antifreeze consumption increases.
    • The engine overheats.
    • Efficiency of the cooling system worsens.
    • Cooling liquid leaks.

How to repair or replace coolant expansion tank?

Manufacturers recommend to replace the car coolant expansion tank once a year. However, if the component breaks down earlier, it is necessary to repair or replace it immediately.

The cooling system expansion tank can be repaired, if the cause of its malfunction is in the cap valve. In this case, you can just replace the cap. Make sure the spare part is marked identically to the broken one.

If the housing is cracked or damaged, the coolant expansion tank requires replacement. It can be performed single-handedly, as the procedure is quite simple. In order to replace the part, you need to:

  1. After the engine cools down, drain cooling liquid into a spare container.
  2. Loosen the clamps of steam- and liquid-discharge hoses and remove them from the tank.
  3. Remove tank fasteners from the bracket.
  4. Lift and tilt the tank in the direction of the headlights to release it.
  5. Loosen the lower clamp and remove the hose from the tank pipe. Remove the tank.
  6. Install a new one in reverse order. Fill with antifreeze up to the mark on tank walls.
  7. Start the engine and check for leaks on tank walls and hoses.

Coolant Expansion Tank / Coolant Reservoir Information

Coolant Expansion Tank / Coolant Reservoir: Bestsellers

-20%
TOPRAN Expansion Tank, coolant
Article № : 700 339
Read the product details
Buy TOPRAN 700 339
£ 10,16
£ 8,13
incl. 20% VAT, Shipping
  • Supplementary Article/Info 2: without lid
  • Material: Plastic

OEM-Number

77 01 4 704 60

In stock
Read the product details
-20%
TOPRAN Expansion Tank, coolant
Article № : 302 295
Read the product details
Buy TOPRAN 302 295
£ 16,10
£ 12,88
incl. 20% VAT, Shipping
  • Supplementary Article/Info 2: without lid
  • Material: Plastic

OEM-Number

12 21 3 62

In stock
Read the product details
-20%
FEBI BILSTEIN Expansion Tank, coolant
Article № : 47902
Read the product details
Buy FEBI BILSTEIN 47902
£ 25,06
£ 20,05
incl. 20% VAT, Shipping
  • Material: PP (Polypropylene)
  • Supplementary Article/Info 2: with sensor
  • Weight [kg]: 0,48

OEM-Number

13 36 0 063

13 37 0 133

13 25 6 824

In stock
Read the product details
-20%
METZGER Expansion Tank, coolant
Article № : 2140072
Read the product details
Buy METZGER 2140072
£ 29,07
£ 23,26
incl. 20% VAT, Shipping
  • Supplementary Article/Info 2: without lid
  • Part number of recommended accessories: 2140057

OEM-Number

46 83 6 856

In stock
Read the product details
-20%
FEBI BILSTEIN Expansion Tank, coolant
Article № : 37324
Read the product details
Buy FEBI BILSTEIN 37324
£ 11,91
£ 9,53
incl. 20% VAT, Shipping
  • Number of connectors: 2
  • Supplementary Article/Info 2: with sensor
  • Weight [kg]: 0,315

OEM-Number

1J 01 2 140 3B

1J 01 2 140 3

1J 01 2 140 3A

In stock
Read the product details
-20%
THERMOTEC Expansion Tank, coolant
Article № : DBA004TT
Read the product details
Buy THERMOTEC DBA004TT
£ 17,74
£ 14,19
incl. 20% VAT, Shipping
In stock
Read the product details
-20%
TOPRAN Expansion Tank, coolant
Article № : 722 676
Read the product details
Buy TOPRAN 722 676
£ 14,35
£ 11,48
incl. 20% VAT, Shipping
  • Supplementary Article/Info 2: without lid
  • Material: Plastic
In stock
Read the product details
-20%
TOPRAN Expansion Tank, coolant
Article № : 103 006
Read the product details
Buy TOPRAN 103 006
£ 9,48
£ 7,58
incl. 20% VAT, Shipping
  • Heating / Cooling: with coolant level switch connection
  • Supplementary Article/Info 2: without lid, with sensor
  • Material: Plastic

OEM-Number

1H 01 2 140 7A

35 71 2 140 7C

35 71 2 140 7B

In stock
Read the product details