Simos 6.x Siemens VW Audi Seat Skoda ECU MPC5xx JTAG cloning
Simos 6.x Siemens VW Audi Seat Skoda ECU MPC5xx JTAG cloning: a UK mail-in bench service from fixmyecuuk in Newport, Shropshire, from £71 including free tracked return. Your original unit's data is transferred into a matching donor with the same part number, so in most cases it fits without dealer programming. Typical turnaround is 1–3 working days. You can pay now or when the work is done — full refund if we can't do it.
- 1–3 working days
- 90-day warranty
- Free tracked return
- Pay now or after the job
- Original data backed up first
Siemens Simos 6.x is an MPC5xx PowerPC unit read over JTAG.
Can the Simos 6.x Siemens VW Audi Seat Skoda ECU MPC5xx JTAG (SIMOS6) be cloned?
Yes — this is a service we list for the part numbers below. Your original's data is transferred into a matching donor with the same part number. We confirm your exact label before you post, and you can pay now or when the work is done.
Siemens/Continental SID, SIM, Simos and EMS engine ECUs store the immobiliser and vehicle data internally, so a replacement unit needs the original's data transferred before it will start the engine.
Which part numbers and versions are covered?
- SIMOS6
Also covers these series: MPC5xx — confirmed from your label photo.
Makes: VW, Audi, SEAT, Skoda
Models / engines: 6.x JTAG
Yours not listed? Send a photo of the label and we'll confirm whether it's covered.
What do I need to send?
- Your original ECU (even if it is faulty — the data is what matters)
- The donor ECU, with exactly the same part number and hardware number as the original
- A note with your name, phone, registration and the job reference we give you
- Do not send wiring looms, brackets or keys unless we ask
How to pack and post your module →
How much does it cost?
from £71 for the bench work, including free tracked return to a UK address. The exact price is confirmed from your label photo before you post.
How to book — pay after the job, or pay now
Pay after the job
Post your original and the donor (same part number). When the work is done we message you the payment link, and your module goes back tracked once it's paid.
See the stepsPay now, then post
Pay now – enter £71 – card, Apple Pay, Google PayFree chip read first — no payment until your module reads on our bench. Please wait until we confirm your module has read before paying.
Check your part number matches this page before paying. If we can't do the job after bench testing, you get a full refund.
After paying, post your original and the donor (same part number) to fixmyecuuk, 16 Chester Road, Chetwynd, Newport, Shropshire, TF10 8BN with your eBay/job reference (or the name and email you paid with).
Secure payment by Stripe — opens in a new tab.
- Confirm your part number (free). Send a clear photo of the label — we reply with a written quote: the exact price and what to send.
- Book and post your original and the donor (same part number). Reply to the quote to book — the quote includes our address and a short statement about your right to cancel (terms, section 7) for you to confirm. Then post it as shown in how to post your module. If you're paying after the job, there's nothing to pay yet.
- We read it on the bench, then do the job. If it can't be done, we tell you and send it back with no charge for the work — and if you paid up front, you get a full refund.
- Pay (if you haven't already), then it's posted back. When the work is done we send you a card / PayPal payment link; your module goes back tracked as soon as it's paid.
Typical symptoms and fault codes
- No start with a used ECU fitted
- Internal ECU fault codes
- ECU not communicating
Fault codes often seen:
- P0606 — control module processor fault
- P0605 — internal control module ROM error
- U0100 — lost communication with ECM/PCM
How does it work?
- SendLabel photo first — we confirm the price and what to send. Pay now or after the job, and post it.
- We clone itOriginal backed up first, clone read back and verified on the bench.
- Returned trackedNot paid yet? We send a payment link when the work is done; once paid, it goes back tracked. No charge for work we can't complete — full refund if you paid up front.
What's not included?
- Immobiliser removal ('immo off') — we do not offer it
- Remapping or tuning
- Fitting to the car
- Repairs to the car's wiring or other modules
- Supplying a donor unit (unless agreed separately)
How long does it take?
Most modules are on the bench the working day they arrive, and most jobs go back within 1–3 working days. Complex jobs, board repair and anything needing parts can take longer — we tell you before we start. Covered by our 90-day workmanship warranty, on top of your statutory rights.
More questions
Will the car start after fitting the cloned ECU?
In most cases, yes: a correct clone of a matching unit is plug and play. Some platforms need a short relearn (throttle, idle or injector values) after fitting, and we tell you before you post if yours does.
Does the donor have to be the same part number?
Yes. The donor must match the original's part number and hardware. Software can sometimes differ, but we confirm by part number before you post.
What if my original ECU can't be read?
If the chip can't be read we tell you and return your units, with no charge for the work. Where the fault is on the board (power supply, a burnt driver) we may be able to repair it first — we'll quote that separately.
Guides
- P0606, P0605 and other ECU internal fault codes (P0600–P0606)
- Fitting a second-hand ECU, TCU or module: why it needs cloning
Also listed on our eBay shop as item 366703646298.
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