Mercedes-Benz C Class C230K Coupe W203 4 Cylinder Thermostat Engine Code -M271.948 03-05

Name: Mercedes-Benz C Class C230K Coupe W203 4 Cylinder Thermostat Engine Code -M271.948 03-05
Brand: Mercedes Benz
SKU: TM5162
Price: 1995 ZAR
Availability: InStock

R1,995.00

Tax included

Mercedes-Benz C Class C230K Coupe (W203) 4 Cylinder Thermostat ( Engine Code -M271.948 ) 03-05

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Description
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Mercedes-Benz C Class C230K Coupe W203 4 Cylinder Thermostat Engine Code -M271.948 03-05

Thermostats & Thermostat Housings — OEM-Spec Temperature Control

Precise temperature control is the backbone of modern engines. This OEM-spec component (thermostat or integrated housing, depending on the application) restores correct warm-up behaviour, stabilises operating temperature, and protects against overheating in South African conditions.

Keep your cooling system healthy
• Water pump failures — warning signs
• Why cars overheat in South Africa
• Shop OEM-approved coolants & deionised water
• Browse Thermostats — precise temperature control
• Shop Thermostat Housings — durable, leak-free modules

Why replace the thermostat / housing

Restores correct warm-up strategy and stable operating temperatures
Prevents overheating, detonation and oil breakdown under SA heat
Protects turbochargers, head gasket and emissions systems
OEM-aligned design for fitment, sealing and sensor compatibility

Component overview

Thermostat (wax / electronic)

Controls coolant flow between engine and radiator
Wax-type opens by temperature; electronic units add ECU control
Failure modes: stuck open (runs cold), stuck closed (overheats)

Thermostat housing / module

Integrated unit with thermostat, O-rings, sensors and routing channels
Material: polymer or alloy; each requires correct torque and sealing
Failure modes: leaks, warping, cracked spigots, sensor faults

Common symptoms

Temperature gauge drops at speed but climbs in traffic (stuck open)
Overheating warnings, boiling sounds, or coolant push (stuck closed)
Coolant residue or staining around housing joints and hose unions
Heater weak at idle, improves with revs (air or poor flow)
ECU codes for thermostat heater / temp correlation (electronic units)

What’s included

Thermostat or thermostat-housing module matched to the listed application
Seals/O-rings where applicable

Images are for illustration. Confirm by OE/part number, engine code and connector type. Contact us with your VIN for fitment support.

Installation best practice

Flush system and refill with OEM-approved coolant and deionised water
Clean mating faces; replace O-rings; torque fasteners to spec
Follow the bleed procedure to remove air pockets (critical)
For electronic units: check connector condition and route loom correctly

FAQs

Is this a thermostat or a complete housing?
It matches the vehicle application listed. Some models use a standalone thermostat, others use an integrated housing/module.

Can I replace an electronic thermostat with a basic wax unit?
No. Vehicles calibrated for electronic control need ECU-assisted response for warm-up and load changes.

Do I need new coolant?
Yes. Wrong or contaminated coolant causes deposits, poor valve response and leaks. Use OEM-approved coolant with deionised water.

Should I replace the thermostat when fitting a new water pump?
Recommended on higher-mileage cars to stabilise temperatures and protect the head gasket.

How do I confirm fitment?
Match by VIN or OE number (opening temperature, connector style, housing layout). We can confirm before purchase.