Skip to content
Lion Yard Trading
Mercedes-Benz · Cooling

Coolant pipes and flanges

The rigid metal and plastic pipes and the flanged housings that route coolant around the engine.

How you know it is this

  • A leak from a rigid pipe rather than a hose
  • A cracked plastic flange, often at the back of the cylinder head
  • Coolant appearing in the valley of a V engine

Worth knowing before you buy

  • Plastic flanges and thermostat housings crack with heat. Aluminium replacements exist for several engines and are worth asking about.
  • Pipes that run in the valley of a V6 or V8 are buried under the inlet manifold, so the part is cheap and the labour is not.
  • Corroded steel pipes usually mean the coolant was neglected or diluted with water.

What we need to quote it. The engine code. The chassis number settles the generation, the body and usually the engine in seventeen characters — it is on your mulkiya. A photograph of the old part helps where there is more than one version.

RadiatorExpansion tank and capUpper and lower hosesThermostat and housingWater pumpAuxiliary pumpFan and clutchShroud and mountsHeater matrix and valveHeater hosesPipes and flangesTemperature sensorAuxiliary coolers
Cooling circuit — schematic, to show where the part sits. Arrangement is right; it is a diagram and not a fitment reference.

Rest of the radiator and circuit

All cooling parts
Get in touch

Coolant pipes and flanges for your Mercedes-Benz?

Send the chassis number and a photograph of the old part. We come back with genuine, OEM and aftermarket options priced side by side, with lead times.

Mon–Sat, 8:00 AM – 6:00 PM · +971 54 303 3119 (Operations Director) · +971 54 241 0599 (Managing Director)