Citroen / Peugeot Bosch M1.3.1 Engine ECU Repairs

Type: Bosch Engine Management
Fits: Citroen / Peugeot
Fuel: Petrol
Ref: ECUT91195

Note: This ECU may also fit other models.

There is no second reference to lean on with the Bosch M1.3.1 on this page. Our table holds a single unit, Bosch number 0261200354, and the OEM column beside it is blank, so the Bosch number is the one to read and the one to send.

That makes identification simple and unforgiving at the same time. The right ten digits settle it, but a wrong digit has nothing printed alongside it to expose the mistake. What follows shows how to give that one number the support a second reference would provide.

One row, one number

The unit recorded here is 0261200354. It is also listed as a Motronic 1.3, or M1.3, the name you are more likely to meet in other listings; M1.3.1 is the name this page uses. Either name may lead you here, but only the number confirms the unit.

Because nothing sits in the OEM column for this unit, a Citroën or Peugeot part number on your label, if there is one, has no entry in our table to be compared with. Note it down anyway and include it when you contact us, but let the Bosch number decide whether this is your page.

Copying the ten digits without dropping one

You may find the same number written three ways: run together as 0261200354, spaced as 0 261 200 354, or split up with dashes. All three are the same unit, so ignore the spacing and compare the digits one at a time.

Take the number from the unit itself rather than from paperwork, and read it twice before you type it. With no second reference in the table, the digits you send are the whole identification.

The car and engine as a cross-check

The next best support comes from the vehicle. This unit is recorded against the Citroën BX and the Peugeot 309, both with the 1.9-litre 16-valve petrol engine, so two marques lead to the same single row.

If your label reads 0261200354 and the unit came from one of those cars with that engine, number and vehicle agree. If the car is a BX or 309 with a different engine, tell us what it is before posting; the model name alone does not put a unit on this page.

When the number points somewhere else

A label that does not read 0261200354 is not the unit on this page, even when the car is right. Look through Peugeot engine ECUs, petrol and diesel, or the Citroën engine ECU hub; for anything else, start at our engine ECU repairs, whatever the make.

Testing and repairing it in our workshop

Send your details through the Repair Form, digits checked twice, adding the car, its engine and a short description of the fault. The service is mail-in and open to senders anywhere in the UK, so the unit itself travels to us by post.

Once here, it is logged, inspected and electrically tested before our engineers diagnose the fault you described. The repair is carried out in-house in our UK workshop, at component level, under a microscope and with temperature-controlled rework equipment, on the part that has failed rather than by exchanging the unit.

You receive our findings with a quote, and no chargeable work starts until you authorise it. The unit leaves only after it passes final testing, and the repair carried out is covered by our 24-month warranty.

Its single row appears below.

Common part numbers associated with this type of unit