01
What do you notice?
The BMW runs roughly, has a significant power loss or cylinders 1–3 or 4–6 fail together. Fault memory often contains 30BA or 30BB.
BMW · MSD80 / MSD80.2 · ENGINE CONTROL UNIT · BAMMENTAL
← All control unit repairsBMW MSD80 repair – back on all cylinders.
30BA, 30BB or a failed cylinder bank? We inspect and repair the injector control circuitry of your BMW MSD80 / MSD80.2. Standard repair costs 199 € including VAT and standard return shipping.
199 €Standard repair · including VAT and standard return shipping
30BA / 30BBTypical injector control faults
Original unitRepair confirmed output-stage damage
199 € including VATStandard return shipping included
BRIEFLY EXPLAINED · FROM FAULT TO REPAIR
Understand what is being repaired.
02
What might be damaged?
The injectors are electrically switched by the engine control unit. If this control circuitry is damaged, an entire cylinder group may be affected. Injectors, wiring and power supply are part of fault isolation.
03
How do we fix it?
We inspect the submitted MSD80 / MSD80.2 and repair confirmed output-stage damage within the agreed standard scope. The original unit is retained; an MSD81 conversion is a different service.
04
How is it checked?
Channel comparisons, relevant electrical measurements and available communication are documented. Final checks of cylinder operation and fault status are performed on the vehicle after reinstallation.
For a lasting result.
Before connection, defective injectors, wiring or connectors must be ruled out or repaired as the cause of damage. Replacing the electronics alone is insufficient if an external fault exists.
01 / SERVICE
What we offer you.
What is the MSD80?
The MSD80 is a BMW engine control unit made by Siemens / Continental. Among other functions, it controls fuel injection. The designation is on the control unit label – a photo helps us more than the model name alone.
What is included in the price?
199 € including VAT and standard return shipping applies to the agreed standard injector-control repair case. Data transfer, a replacement unit, or damage from water, overvoltage and severe circuit-board damage may require a different scope. Additional costs are agreed beforehand.
Repair, cloning or MSD81?
Repair concerns your existing unit. Cloning, by contrast, transfers data to a compatible replacement. An upgrade to MSD81 is a separate project and is not part of standard repair.
Prepare before shipping
Please do not include injectors or other modules without being asked. First send the diagnostic report and identification label. We arrange timing personally; express return shipping is available by agreement for an additional 20 €.
FAULT CODES · DTC · OBD
Common fault codes and their meanings.
These codes are frequently read during inquiries about this system. A DTC identifies the detected deviation – the actual cause emerges only from the vehicle, software version, fault status and measured values.
Injector control by cylinder group
- 30BA / 12474
- Injectors for cylinders 1, 2, 3 or internal DME fault
- 30BB / 12475
- Injectors for cylinders 4, 5, 6 or internal DME fault
A fault code alone does not prove internal output-stage damage. The workshop must include injectors, wiring and power supply in its diagnosis.
BMW · ENGINE MANAGEMENT
MSD80: identify the unit instead of ordering on speculation.
| Area | Examples | Identification |
|---|---|---|
| BMW 3 Series | E90, E91, E92, E93 | Only versions actually fitted with MSD80 / MSD80.2 |
| BMW 5 Series and other applications | E60 / E61 and other suitable BMW variants | Match model, engine and complete ECU part number |
02 / PROCESS
Booking your service is this easy.
Send a photo and symptoms
Send the model, model year, a legible identification label and diagnostic report. We identify the unit and repair scope.
Complete the order and ship
Agree on price and timing, complete the appropriate PDF order form and package the module with protection against electrostatic discharge and impacts.
Work and return shipping
We document the repair and inspection scope. After installation, the workshop checks vehicle operation and addresses possible external causes.
PRICES & SCOPE
Transparent before you order.
MSD80 / MSD80.2 standard repair
Including VAT and standard return shipping
Express return shipping
Optional by arrangement of timing and shipping
Other damage, inspection without repair and additional work are agreed in advance.
MAIL-IN SERVICE
Your order form to enclose.
Please arrange shipping with us in advance and enclose the completed order form.
QUESTIONS & ANSWERS
Well informed in advance.
Can an entire cylinder group fail because of the MSD80?
Yes, damage to injector control can cause this. Faults 30BA and 30BB concern groups 1–3 and 4–6 respectively; injectors and wiring must also be checked.
Do you also repair MSD80.2?
Yes, suitable standard MSD80.2 cases are covered. Send us the label and fault codes before shipping for positive identification.
Does the original unit need to be relearned afterward?
Vehicle data is generally retained during output-stage-only repairs. The actual findings determine whether further programming or vehicle work is required.
Does the repair also upgrade performance?
No. This is an electronics repair. Performance tuning, unlocking and replacement with a different generation are agreed separately.
How long does the work take?
We clarify timing after identifying the unit and symptoms. The offered express return shipping shortens transit time, but is not a blanket promise of express repair.
INQUIRE NOW
Ready for your vehicle project?
A personalized quote from CT Performance in Bammental.