Original ECU 8582521 (0281031296)
We sell a used, original DDE 8582521 unit (Bosch 0281031296) for the BMW 2.0 Diesel N47S1. Before dispatch we look inside it and then test it in a car. The unit has never been repaired and has never been in contact with diesel. The ECU comes with a warranty of 6 months.
Preparing for fitting
Like any used ECU, 8582521 has to be matched to the car. The simplest way is cloning: you send us your old ECU and we transfer the immobiliser, ISN and VIN from it – included in the price. The other option is programming in the car.
Would you rather repair your ECU?
We also repair BMW 2.0 Diesel ECUs – contaminated with diesel, with no communication, and those that stop the engine once it is warm. The advantage of a repair is that a repaired ECU needs no programming. Diesel usually escapes from a leaking fuel pressure sensor and travels along the wiring to the ECU connector, so replace that sensor before refitting. We explain the details in our articles BMW ECU contaminated with diesel and BMW N47 / B47 ECU faults.
Markings of ECU 8582521
- BMW number: 8582521 / DDE8582521 / DDE8582521-01
- Bosch number: 0281031296 / 0 281 031 296
The Bosch number may be written as one string (0281031296) or with spaces – it is the same number.
Choose by number
This number was fitted to the BMW F20 / F30 (N47S1 engine). Choose the ECU by the numbers on the label: BMW number 8582521 and Bosch number 0281031296 must match your unit.
Paid options on request
- EGR OFF,
- DPF OFF – only on cars with a DPF,
- AdBlue OFF – only on cars with an AdBlue system (not every model has one),
- Flaps OFF – swirl flap removal.
Looking for a number other than 8582521? See also these ECUs:
You will find the rest in the BMW engine ECUs category.
Questions and answers – DDE 8582521
How do you know the ECU has not been contaminated with diesel?
We open every unit and check its interior, then test it in a car. This ECU has never been repaired or contaminated with diesel.
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Can my ECU 8582521 be repaired after diesel contamination?
Usually yes, even if it has no communication or cuts out when warm. A repaired ECU needs no programming.
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What is the warranty on ECU 8582521?
The warranty is 6 months. Before sale we open every unit for inspection and test it in a car.
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What do I need to send for cloning?
Your current ECU. We transfer its data (immobiliser, ISN, VIN) to the 8582521 unit you bought – included in the price.
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