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High-quality Coolant Expansion Tank A2215000003 for Mercedes-Benz S-Class W221 (Chassis 221)
This premium auxiliary coolant expansion tank with OE number A221 500 00 03 (2215000003) is a core thermal management spare part for Mercedes-Benz S-Class W221 chassis vehicles, widely supplied to Mercedes professional repair shops and cross-border auto parts wholesalers with steady annual order demand.
Core Selling Points
High-failure cooling plastic part with stable repeat bulk orders
Expansion tanks are common aging vulnerable parts for W221 S-Class. Original tanks suffer plastic shell cracking, built-in liquid level sensor failure, pipeline interface aging leakage and transparent body yellowing embrittlement after long-term engine bay high temperature, coolant corrosion and vibration. Damaged tanks trigger coolant leakage, dashboard low coolant warning, engine overheating under heavy load, insufficient hot air output in winter and ECU cooling system fault codes. Professional Mercedes repair garages and global export distributors place recurring bulk orders all year round, with stable inventory turnover and good profit space for dealers.
100% OE precise fit, direct installation without modification
Manufactured strictly following original OEM standards: overall tank contour, coolant inlet/outlet pipe caliber, cap mounting thread, built-in liquid level sensor plug pin definition and fixing foot radian fully match genuine A2215000003. Cross interchangeable part codes: A2215000349, A2215000900. Standard matching sealing ring included; no pipeline cutting or wiring refitting required during replacement, perfectly fit W221 engine compartment mounting position and original cooling pipeline layout to greatly cut cooling system maintenance labor hours.
High toughness modified PP transparent tank body, UV resistant, long-term high temperature not easy to yellow, crack or deform
Built-in high-precision liquid level sensor, stable signal transmission, no false fault codes triggered by vehicle ECU
Integrated FKM fluorine rubber sealing assembly at all pipeline joints, resistant to ethanol mixed gasoline coolant, permanent anti-seepage
Reinforced anti-vibration fixing lugs, firmly locked on vehicle frame without loose shedding during bumpy driving
Clear MIN/MAX liquid level scale, convenient for daily coolant inspection and supplement
Stable cooling system pressure balance to protect large-displacement engine
Stores excess coolant generated by thermal expansion of the cooling circuit, balance internal system pressure to raise coolant boiling point and avoid engine overheating during high-speed climbing and full-load driving. Accelerate engine cold start small circulation to speed up warm-up and provide stable hot air for cabin heater; timely discharge air trapped in pipelines to eliminate air blockage and improve cooling efficiency, effectively reduce aging loss of radiator and water pump.
Fully resolve typical expansion tank failure faults
Perfectly fixes common W221 cooling system malfunctions:
Coolant seepage and water stains around tank body and pipe joints
Every expansion tank undergoes coolant immersion aging test, pressure sealing leakage test, liquid level sensor calibration test and high-low temperature cycle test before delivery, compliant with IATF 16949 international automotive quality standards. Mass ready stock supports mixed one-stop bulk procurement with auxiliary water pumps, cooling hoses, radiator assemblies and complete W221 cooling overhaul kits. Custom neutral packaging and private label OEM services are available for cross-border wholesale buyers.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
2008
Total Annual:
10000000-50000000
Employee Number:
150~200
Ecer Certification:
Verified Supplier
Boigevis trading (GuangZhou)Co., Ltd is a company specializing in the sale of engine parts. Our main service models are Germany car.
We have been focus on engine parts for many years and are the Leading global engine system integrator. Both research and development and sales are among the best ... Boigevis trading (GuangZhou)Co., Ltd is a company specializing in the sale of engine parts. Our main service models are Germany car.
We have been focus on engine parts for many years and are the Leading global engine system integrator. Both research and development and sales are among the best ...