Coolant hose AUDI A4 2010

OEM: 8K0121081P

Disassembled car photo

Engine running

  • Tested before shipping
  • Guaranteed quality
  • Fast delivery 3–7 days
  • 14-day returns

What is this part and why does it matter?

This coolant hose carries coolant between the engine, radiator, heater core, and other cooling system components, made of flexible rubber to absorb engine movement and vibration.

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Signs of a faulty part

If you notice any of the following, the part likely needs replacement:

  • Coolant leak visible along the hose or at its connections
  • Visible cracking, bulging, or sponginess when squeezed (engine cold)
  • Engine overheating from restricted coolant flow

Installation information

Push-fits or clamps onto its connections — check routing avoids contact with hot or moving components.

Donor vehicle description

VIN
WAUZZZ8K4AA135627
Make, model
AUDI A4
Year
2010
Engine
Diesel 2.0 105KW CAGA
Transmission
Variable
Drive
Front-wheel drive
Equipment
LHD
Colour
T9T9

370 parts from this car

  • Open/Close button AUDI A4 2010
  • Parking brake button AUDI A4 2010
  • Rear left door control unit AUDI A4 2010
  • Comfort control unit AUDI A4 2010
  • Mirror adjustment button AUDI A4 2010
  • Interior door handle, rear left AUDI A4 2010
  • Parking brake control unit AUDI A4 2010
  • Trunk lid release handle/button AUDI A4 2010
  • Front left door control unit AUDI A4 2010
  • Fuel tank cap lock AUDI A4 2010
  • Front right door control unit AUDI A4 2010
  • Power window motor AUDI A4 2010

Frequently asked questions

With the engine cold, squeeze the hose — it should feel firm and springy. Sponginess, brittleness, or cracking indicates it needs replacing.

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