Vendors's code: A2721533391
Product code: 0261209218
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Shipping costs are not included in the price.
express delivery 3-6 days
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ECU ENGINE CONTROLLER Mercedes A2721533391 / Bosch 0261209218 supplied in VIRGIN condition, prepared for programming directly in the vehicle. The module has been cleared of previous vehicle data, tested on a diagnostic bench, and is ready for adaptation using Star Diagnosis / Xentry or compatible Mercedes-Benz diagnostic equipment.
The ECU ENGINE CONTROLLER A2721533391 / Bosch 0261209218 is supplied in VIRGIN condition, meaning the memory has been fully reset to factory state. The unit behaves like a new ECU and requires adaptation in the vehicle using appropriate diagnostic tools.
Each ECU is fully tested (bench test + communication) and comes with warranty. This is an ideal solution when the original ECU is damaged and cloning is not possible.
Always confirm compatibility by A2721533391 / 0261209218.
Important: part number match is the only reliable compatibility rule.
Does ECU ENGINE CONTROLLER A2721533391 fit Mercedes E350 W211 3.5 V6 M272?
Yes, if the part number matches exactly, the ECU is fully compatible regardless of model differences.
Can ECU 0261209218 from CLS W219 be installed in ML W164 3.5 V6?
Yes, provided the part numbers match and proper programming is performed using diagnostic tools.
Is ECU A2721533391 ME9.7 Plug & Play?
No, as a VIRGIN unit it requires full programming and immobilizer adaptation before engine start.
How to program ECU ME9.7 A2721533391 in Mercedes?
You must use Star Diagnosis / Xentry to perform initial startup and synchronize the ECU with the vehicle.
Can faulty ECU 0261209218 cause no communication in Mercedes 3.5 V6?
Yes, loss of communication is one of the most common failure symptoms of ME9.7 ECUs.
Does ECU A2721533391 support M272 engine in SLK R171?
Yes, it is designed for M272 3.5 V6 engines, but compatibility must always be confirmed by part number.
Is coding required after installing ECU 0261209218?
Yes, programming is mandatory because the ECU is supplied in VIRGIN condition.
Can ECU A2721533391 replace a damaged ME9.7 unit?
Yes, after proper programming it fully replaces the original ECU.
Can this ECU be installed without the original unit?
Yes, but immobilizer adaptation and full vehicle configuration are required.
Can ECU failure cause throttle or ignition problems in M272 engine?
Yes, ECU faults often affect throttle response, ignition timing and engine stability.
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