Coolant Thermostat Housing for Mercedes-Benz A2822030075

Product Overview

Ordered against OEM A2822030075, this Thermostat Housing Assembly replaces the original part in the coolant control circuit on Mercedes-Benz vehicles. The carries the wax element, housing, seals and — on mapped units — the heater and temperature sensor that govern warm-up, so form and fit are not negotiable. The coolant control circuit gives this part a hard life: heat soak, vibration and pressure cycling. Typical end-of-life signs are leaking sensor bosses and elements that stick part open, which reach the workshop as a gauge that never settles in the normal band, higher fuel consumption and thermostat fault codes. The part belongs to a cooling-system catalogue of more than 4000 types, which is the practical reason buyers consolidate a mixed pallet with us rather than splitting it across suppliers.

Key Benefits

• Inspection before despatch — Parts are inspected before they leave, which for this family means checking the sealing faces and the connector geometry that decide whether it fits.
• Built for the duty of the coolant control circuit — The part carries the wax element, housing, seals and — on mapped units — the heater and temperature sensor that govern warm-up, so the compound and the wall construction are matched to that circuit rather than to a generic hose spec.
• Aftermarket buyers, not one-off retail — Pricing and packing are set up for distributors and workshop chains buying by the carton, not for single-piece retail.
• Ordered by reference not by photo — The listing carries OEM A2822030075. You quote the number, we confirm against the same number, and the part that ships is the one on the invoice.

Application Scenarios

Scheduled cooling-system overhaul

The vehicle is in for a coolant leak and the workshop replaces the whole branch at once rather than chasing the next failure in a month. On this reference that means quoting A2822030075 with the quantity and letting the packing follow.

Warranty-expired fleet maintenance

A fleet past dealer coverage moves to independent supply and needs the same reference coverage at a working price. This reference, A2822030075, is bought for exactly that situation on Mercedes-Benz vehicles.

Counter stock for a busy platform

Mercedes-Benz volume in the region justifies holding the line on the shelf instead of ordering it in per job. On this reference that means quoting A2822030075 with the quantity and letting the packing follow.

Who It Is For

• Online parts sellers — listing by OEM reference, where a mismatched number turns into a return and a negative rating. What they need from A2822030075 is that it fits the Mercedes-Benz on the ramp today.
• Fleet and bus operators — running Mercedes-Benz vehicles past warranty and buying cooling-system parts by the box to keep downtime short. What they need from A2822030075 is that it fits the Mercedes-Benz on the ramp today.
• Radiator and cooling specialists — rebuilding cooling systems and sourcing the hoses, flanges and housings for a platform in one go. They order A2822030075 by the carton and reorder against the same number.

Problems It Solves

Returns from wrong fitment

Every returned part costs the freight twice. Checking the opening temperature, the housing outline and whether the unit is map-controlled before despatch is cheaper than a credit note. That is why A2822030075 carries its full cross-reference set on this page.

Long lead times on slow movers

A slow line ordered alone waits for a container. Consolidated with fast movers it travels on the same shipment. For Mercedes-Benz buyers it is the difference between a stocked line and a credit note on A2822030075.

Unclear compound

Confirm the compound against the reference before ordering, because visually identical parts are moulded in different materials. With A2822030075 the check is the opening temperature, the housing outline and whether the unit is map-controlled, and it happens before despatch.

Technical Features

The part serves the coolant control circuit and carries the wax element, housing, seals and — on mapped units — the heater and temperature sensor that govern warm-up. Material for this reference is confirmed per enquiry. The listed opening temperature is 83°C, which is the figure that has to match the vehicle.

Matched to the circuit the part serves. Confirm the compound against the reference before ordering, because visually identical parts are moulded in different materials.

Specifications

Values marked TBC are not stated on the source catalogue. They are confirmed in writing on the quotation rather than estimated here.

Comparison With the Alternatives

Use Guide

1. Confirm the reference

   Match OEM A2822030075 against the number on the part you removed. Do not match on outline alone.

2. Check the interfaces

   Compare the opening temperature, the housing outline and whether the unit is map-controlled before the vehicle is stripped further.

3. Inspect on arrival

   Look for transit damage on sealing faces and connectors. Confirm the compound against the reference before ordering, because visually identical parts are moulded in different materials.

4. Fit with the original clamp style

   Reuse the clamp type the Mercedes-Benz platform was designed around, and fit any seal or O-ring supplied with A2822030075 rather than carrying the old one over.

5. Pressure check before handover

   Refill, bleed the circuit and check for cracked plastic housings at working temperature before the vehicle leaves.