Mercedes W124 Cooling and Heating Parts

W124 Chassis (1984–1993) Cooling and Heating Parts

OEM and Approved Aftermarket Options
Carefully selected Cooling and Heating Parts for the W124 chassis, including original Mercedes-Benz OEM radiator, water pump, thermostat, and heater core parts; also includes high-performance aftermarket alternatives. Radiator options feature BEHR, HELLA, NRF; water pumps from MEYLE, GMB, GATES; thermostats from VERNET, ELSTOCK; and heater cores from VALEO, BEHR brands offer quality and durability.

Easy Installation & Perfect Fit
All Cooling and Heating Parts components fit into the original mounting points of the W124 engine block and cabin heating circuit with a plug-and-play design that clicks into place. Radiator inlet-outlet connections, water pump flange, and thermostat mounting surface ensure factory tolerances without the need for additional fittings. Original clips and gasket sets for the heater core guarantee a leak-free installation.

Fast Delivery & Cash on Delivery
With guaranteed packaging delivery within 24–48 hours across Turkey, live cargo tracking, and cash on delivery options, you can effortlessly place your order for Cooling and Heating Parts. Thanks to real-time stock updates, your complete parts will reach your door immediately after order confirmation, and the cooling and heating system of your W124 will be renewed in no time.

98% Off

Mercedes W124 M103 Thermostat Bypass Hose

100 ₺6.110 ₺98%In Stock

Same-Day Shipping

Packaging and Delivery
Our Cooling and Heating Parts set designed for the W124 chassis (1984–1993) is carefully packaged in impact-resistant foam-layered and compartmentalized special boxes. Each component of the Cooling and Heating Parts set—BEHR/HELLA/NRF radiator, MEYLE/GMB/GATES water pump, VERNET/ELSTOCK thermostat, VALEO/BEHR heater core, and mounting seals—are secured in separate compartments. This packaging ensures that your Cooling and Heating Parts are protected against vibrations, impacts, and moisture during shipping. Delivery within 24–48 hours across Turkey, live cargo tracking, and cash on delivery options make your Cooling and Heating Parts shopping experience both fast and secure.

Warranty and Return Conditions
A 2-year warranty is provided for OEM-compatible parts in our offered Cooling and Heating Parts set, and a 1-year warranty for aftermarket alternatives. Warranty coverage includes:

Manufacturing Defects and Material Flaws (radiator leaks, pump body cracks, thermostat sticking, heater core blockages)
Shipping Damages (packaging deformations, part scratches or dents)
Incorrect Part Shipment (incorrect Cooling and Heating Parts component based on your chassis number)

You can use your right to return or exchange the Cooling and Heating Parts set free of charge within 14 days from the date of delivery with the original packaging and invoice; returns for products purchased with cash on delivery are processed quickly via cash or bank transfer.

After-Sales Technical Support
Our 24/7 accessible technical support line is here to assist you throughout the installation and commissioning process of your Cooling and Heating Parts. Our expert team:

Confirms the correct Cooling and Heating Parts codes by checking your chassis number (VIN),
Provides step-by-step guidance via phone or screen sharing during radiator hose connection, water pump replacement, thermostat installation, and heater core setup,
Offers support for post-installation pressure testing, leak checks, and antifreeze level adjustments.

Set Contents and Technical Specifications

Radiator (BEHR/HELLA/NRF): High heat transfer efficiency, aluminum or copper core, full compliance with OEM connection dimensions.
Water Pump (MEYLE/GMB/GATES): OEM impeller design, durable bearing system, and long service life.
Thermostat (VERNET/ELSTOCK): Precise opening/closing temperature, integrated seal, and external temperature stabilization.
Heater Core (VALEO/BEHR): High flow capacity, corrosion-resistant aluminum fins, and OEM mounting dimensions.
Mounting Seals and Clamps: Seals made of NBR material providing full leak-proofing, stainless steel clamp set.

Installation and Setup Guide

Preparation: Drain the coolant, loosen the hose clamps; prepare pliers, screwdriver, and torque wrench.
Dismantling Old Parts:
- Disconnect the radiator hoses and remove the unit's mounting bolts.
- Loosen the water pump belt and remove the pump.
- Remove the thermostat cover and take out the old thermostat.
- Remove the heater core panel and take the core out from inside the cabin.
Surface Cleaning: Clean all mounting surfaces of rust and old sealant residues.
Mounting New Parts:
- Radiator: Place it in position and secure the hoses and clamps according to torque specifications.
- Water Pump and belt are secured to the mounting flange at OEM torque values.
- Thermostat: Place it with a brand new seal into its cover and secure it with a torque wrench.
- Heater Core: Place it into the cabin with correct alignment and secure it with clips and seals.
Test & Control: After filling with antifreeze, purge the air from the purge hose; start the engine to check the radiator fan activation temperature, pump noise, and heater core flow.

Maintenance and Longevity Tips

Antifreeze Replacement: Renew the coolant every 40,000 km or every 2 years.
Thermostat Monitoring: Have the thermostat opening/closing values checked every 5 years.
Hose Inspection: Check the tightness of hose clamps and the condition of hoses for cracks/softening during every maintenance.
Radiator Cleaning: Periodically clean the dust and dirt from the outer surface with pressurized water.
Pump Noise: Plan lubrication or early replacement considering abnormal sounds from the water pump bearing.

About Mercedes W124 Cooling and Heating Parts

This page lists 1 product in the Cooling and Heating Parts category for the Mercedes W124 (1984-1993). All of them are from BSG. Use the filters to narrow the list by brand, price or stock status.

Under distance-selling rules you can withdraw from your purchase within 14 days of delivery; see our cancellation and returns policy for details. If you're not sure whether a part fits your car, ask our parts specialists on WhatsApp.

Frequently asked questions

Which brands are available for Mercedes W124 Cooling and Heating Parts?

All products in this category are from BSG.

How do I know a part fits my car?

Before ordering, send your vehicle identification number (VIN) to our WhatsApp line (+90 538 292 72 19) and our parts specialists will confirm the part fits your car.

When will my order ship?

Orders for items in stock in our warehouse whose payment is approved by 15:00 ship the same business day. Items from supplier stock ship within 2-4 business days at the latest.

W124 Chassis (1984–1993) Cooling and Heating Parts

Set Contents and Technical Specifications

Radiator (BEHR/HELLA/NRF): High heat transfer efficiency, aluminum or copper core, full compliance with OEM connection dimensions.

Water Pump (MEYLE/GMB/GATES): OEM impeller design, durable bearing system, and long service life.

Thermostat (VERNET/ELSTOCK): Precise opening/closing temperature, integrated seal, and external temperature stabilization.

Heater Core (VALEO/BEHR): High flow capacity, corrosion-resistant aluminum fins, and OEM mounting dimensions.

Mounting Seals and Clamps: Seals made of NBR material providing full leak-proofing, stainless steel clamp set.

Installation and Setup Guide

Preparation: Drain the coolant, loosen the hose clamps; prepare pliers, screwdriver, and torque wrench.

Dismantling Old Parts:

Disconnect the radiator hoses and remove the unit's mounting bolts.
Loosen the water pump belt and remove the pump.
Remove the thermostat cover and take out the old thermostat.
Remove the heater core panel and take the core out from inside the cabin.

Surface Cleaning: Clean all mounting surfaces of rust and old sealant residues.

Mounting New Parts:

Radiator: Place it in position and secure the hoses and clamps according to torque specifications.
Water Pump and belt are secured to the mounting flange at OEM torque values.
Thermostat: Place it with a brand new seal into its cover and secure it with a torque wrench.
Heater Core: Place it into the cabin with correct alignment and secure it with clips and seals.

Test & Control: After filling with antifreeze, purge the air from the purge hose; start the engine to check the radiator fan activation temperature, pump noise, and heater core flow.

Maintenance and Longevity Tips

Antifreeze Replacement: Renew the coolant every 40,000 km or every 2 years.

Thermostat Monitoring: Have the thermostat opening/closing values checked every 5 years.

Hose Inspection: Check the tightness of hose clamps and the condition of hoses for cracks/softening during every maintenance.

Radiator Cleaning: Periodically clean the dust and dirt from the outer surface with pressurized water.

Pump Noise: Plan lubrication or early replacement considering abnormal sounds from the water pump bearing.

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W124 Chassis (1984–1993) Cooling and Heating Parts

Mercedes W124 Cooling and Heating Parts

Mercedes W124 M103 Thermostat Bypass Hose

Set Contents and Technical Specifications

Installation and Setup Guide

Maintenance and Longevity Tips

About Mercedes W124 Cooling and Heating Parts

Frequently asked questions

Which brands are available for Mercedes W124 Cooling and Heating Parts?

How do I know a part fits my car?

When will my order ship?

W124 Chassis (1984–1993) Cooling and Heating Parts

Mercedes W124 Cooling and Heating Parts

Mercedes W124 M103 Thermostat Bypass Hose

Set Contents and Technical Specifications

Installation and Setup Guide

Maintenance and Longevity Tips