Magneti Marelli IAW4LV Engine ECU Repairs

Type: 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.

Our table sets a second number beside each Magneti Marelli IAW4LV code it prints. With the code in one column and that number in the next, a reading taken from an engine ECU can be checked against our table twice, once for each column.

The first section below explains those two checks. A section for each code follows, giving what listings attribute to it, and the page closes with the repair as our UK workshop carries it out. Volkswagen-group petrol engine ECUs beyond this page are reached through engine ECU repairs listed under Volkswagen.

Code in one column, number in the next

Our table prints each Magneti Marelli code in its first column, in the form IAW4LV.TA. In the column beside it, our table prints a second number, which on the IAW4LV.TA row is 036 906 034AQ.

Comparing the code with the first column is one check. If you have the number as well as the code, comparing it with the second column is another. Make that second comparison on its own terms, rather than leaving it until the code has already suggested a row.

The row to work from is the one where the code and the number agree. Where a section below says the pairing our table prints is also on record, that second check rests on more than our table alone.

If the code points to one row and the number to another, or a reading is unclear, our technical team confirms coverage for the specific unit rather than guessing.

What listings give for each IAW4LV code

Our table does not print a car or an engine size. Those details come from listings that name the code. Should the code read from a unit match a heading below, that section is the one to read. The code decides the section; the vehicle a unit came out of does not.

IAW4LV.KA

In our table, 6K0 906 034E sits beside IAW4LV.KA. Listings set the same number, 6K0 906 034E, with IAW4LV.KA. A VW Polo is named for IAW4LV.KA in listings. IAW4LV.KA appears on record with an engine size of 1.4 litres.

IAW4LV.L

036 906 034D is on record with IAW4LV.L. Our table prints 036 906 034D beside IAW4LV.L too. IAW4LV.L is attributed to a VW Polo. Records give IAW4LV.L a 1.4-litre engine size.

IAW4LV.TA

Our table prints 036 906 034AQ beside IAW4LV.TA. IAW4LV.TA turns up with 036 906 034AQ in listings as well. A VW Lupo is on record for IAW4LV.TA. Listings attach an engine size of 1.4 litres to IAW4LV.TA.

IAW4LV.XA

Next to IAW4LV.XA, our table has 036 906 034BE. 036 906 034BE accompanies IAW4LV.XA on record too. Records for IAW4LV.XA mention a VW Polo. An engine size of 1.4 litres is on record for IAW4LV.XA.

IAW4LV.B

036 906 034AE is printed beside IAW4LV.B in our table. On record, IAW4LV.B and 036 906 034AE appear together. A Skoda Fabia is recorded for IAW4LV.B. Listings for IAW4LV.B state an engine size of 1.4 litres.

IAW4LV.Z

Our table prints 036 906 034Q alongside IAW4LV.Z. The pairing of IAW4LV.Z with 036 906 034Q is on record too. An Audi is on record for IAW4LV.Z. A 1.4-litre engine size is noted for IAW4LV.Z.

IAW4LV.C

Listings tie IAW4LV.C to a Skoda Fabia. An engine size of 1.4 litres appears in records for IAW4LV.C.

IAW4LV.H

Our table prints 036 906 034BB beside IAW4LV.H. 036 906 034BB is on record alongside IAW4LV.H as well. A VW Golf is named in listings for IAW4LV.H. IAW4LV.H has an engine size of 1.6 litres on record.

The repair route for an IAW4LV engine ECU

A Magneti Marelli IAW4LV engine ECU reaches our UK workshop by post, from anywhere in the country. On arrival it is logged and inspected visually, then tested electrically, and then taken through diagnostics aimed at its particular fault.

We then contact you with the diagnosis and a quote for the repair. Chargeable work does not begin until you give your authorisation.

Our own engineers make the repair at component level. The specific fault, such as a failed injector driver or a corrupted EEPROM, is found and put right instead of the whole unit being swapped.

Component work is done under a microscope with temperature-controlled rework equipment, in our own workshop. Nothing is subcontracted or sent overseas.

A repair counts as complete once the unit passes final testing, after which it is posted back to you. Our cover for the fault we fixed lasts 24 months and stays with the person who sent the unit in.

For a quote, contact us via the Repair Form our engine ECU customers fill in. Engine ECUs from other manufacturers are reached through a manufacturer-by-manufacturer guide to our engine ECU repairs, and a selection of further engine ECU types is described in our What We Repair listing of engine control modules.

Here, as our table prints them, are the Magneti Marelli codes, each with the number set beside it.

Common part numbers associated with this type of unit