Magneti Marelli IAW4LV Engine ECU Repairs

Magneti Marelli IAW4LV ECU RepairsType: Magneti Marelli Engine Management
Fits: Audi A2 / Seat Cordoba / Ibiza / Leon / Toleda / Volkswagen (VW) Bora / Golf / Polo
Engines: 1.4L and 1.6L
Year: 1999 – 2005.

Note: This ECU may also fit other models.

It is a Magneti Marelli IAW4LV ECU and we are able to fully test and rebuild these units.

Common part numbers associated with this type of unit

Marelli Number
OEM Number
6K0 906 034E
12 Months
036 906 034D
12 Months
036 906 034AQ
12 Months
036 906 034BE
12 Months
036 906 034AE
12 Months
036 906 034Q
12 Months
036 906 034
12 Months
036 906 034BB
12 Months

We are able to fully test and rebuild these ECU’s with a 12 months warranty and all within a fraction of the price of a new unit. Our typical turnaround time for this type of ECU is just 3-5 working days. If you’re unit is found to be faulty and cannot be repaired, we may be able to offer a replacement unit and code it to your vehicle – making it fully plug & play.

2 thoughts on “Magneti Marelli IAW4LV Engine ECU Repairs

  1. Welcome..

    I would like to send Marelli 4LV ECU for repair.. from Hungary..


    After 10 minutes of driving… it starts to accelerate more… or it doesn’t
    respond to acceleration… or sometimes it even shuts down… P1553 or P1504 error
    occurs… vacuum sensor and air leakage…

    When going uphill, he simply took the control off the throttle… (measurement:
    voltage disappears) I could only go up the hill at 1200 rpm…..

    .. crashes when accelerating… or sometimes chokes… stops … Can be restarted

    There are also false error codes:

    P1553 , P1504 ETC

    lambda probe heating fault (no break in the heating filament) output can be

    brake switch error… (good, the switch is also set… supply voltage can be

    Sometimes the immo won’t let you start…( Ecu locked )

    long-term mixture adjustment 40-50 % shifted… it’s been there for years… for
    no reason…
    Not now..

    There is a problem on the logical side..?? I mean processor or its environment..

    The car wreckers are running out of these ECUs.. there are hardly any left…

  2. Hello theree!!

    Thank you for reaching out to us!

    I’ve passed along your inquiry to the appropriate department, and they will be in touch with you via email soon.

    ECU Repairs

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