Alfa Romeo 166
Type 936
In Motortune ProNeed to read fault codes, reset the service light or check a warning lamp on your 166 without a workshop trip? Motortune turns your iPhone and an ELM327 / OBD-II adapter into a scanner for the Alfa Romeo 166 (type 936): it walks every control unit it can reach, names each fault in plain language, resets the service reminder and runs guided service routines. Free to scan; the one-time $18.99 Motortune Pro adds the write features.
Control units
Every unit the catalog lists for this model, across its model years — your car carries a subset, which the app finds when it connects. The tag says what reaches each one: Any adapter MS-CAN adapter vLinker MS Special cable
- Engine
- Diesel Bosch EDC15Any adapterActuators
- Engine control unitAny adapterServiceActuators
- Gearbox
- AISIN YLII 5Any adapterActuators
- ZF 4HP20Pre-OBD
- Brakes / ABS
- ABS Bosch 5.3Pre-OBD
- ABS Bosch 5.7Special cableActuators
- Airbags
- AirbagPre-OBD
- Driver assistance
- Parking Valeo K-LineSpecial cable
- Body
- RF DoorLock VAS97(/1-/4)Special cable
- Lighting
- HeadlightSpecial cableActuators
- Headlight Right ValeoSpecial cable
- Climate
- Heater WEBASTOSpecial cableActuators
- Keys & security
- Alarm VAS97Special cable
- KeyCode 2 Bosch/Marelli/DelphiSpecial cable
What you can do
- Read fault codes, every reachable unit
- Freeze frame
- Vehicle & control-unit info
- Clear fault codesPRO
- Service / oil resetPRO
- Adaptations & resetsPRO
- CalibrationsPRO
- DPF & exhaustPRO
- Gearbox learnsPRO
- Actuator tests (88)PRO
- Control-unit browser, DID explorer, raw consolePRO
Service functions and actuator tests are matched to each unit’s software version when you connect, so your car may show a subset.
Adapter
3 of 14 control units — including the engine — sit on the standard OBD pins, which any ELM327 v1.5+ adapter reaches. 8 need a make-specific pin-switching cable that Motortune doesn’t support yet. 3 predate the OBD socket and can’t be reached with an OBD adapter.
Other Alfa Romeo models: 4C 960 · 145 930A · 146 930B · 147 937 · 155 167 · 156 932 · 156 932 · 159 939 · 164 164 · Brera / Spider 946/939 · Giulia 952 · Giulietta 940 · GT 937 · GTV 916 · MiTo 955 · Spider 916 · Stelvio 949 · Tonale 965
166 — frequently asked
Does Motortune work with the Alfa Romeo 166?
Yes. The Alfa Romeo 166 (type 936) is in Motortune’s catalog with 14 control units, 3 of which Motortune can reach with the right adapter. Coverage is mapped from the diagnostic catalog; try Demo mode and the in-app compatibility check on your car before relying on it.
How do I read fault codes on a Alfa Romeo 166?
Plug an ELM327 / OBD-II adapter into the 166’s diagnostic socket, switch the ignition on, and connect from Motortune on your iPhone. It walks every control unit it can reach — engine, gearbox and more — and lists each fault in plain language with the unit that reported it. Reading codes is free; clearing them is part of the one-time Motortune Pro.
Can I reset the service light on a 166 myself?
Yes. Motortune resets the service / oil-change reminder on the Alfa Romeo 166 the way a workshop tester does, with a guided step-by-step sheet. The service reset is part of the one-time $18.99 Motortune Pro.
Which service functions does Motortune run on the 166?
Adaptations & resets, Calibrations, DPF & exhaust, Gearbox learns — 4 guided routines across this model’s control units. The app confirms each unit’s software version before offering one, so what you see on your car can be a subset. Part of Pro.
What adapter do I need for the 166?
3 of 14 control units — including the engine — sit on the standard OBD pins, which any ELM327 v1.5+ adapter reaches. 8 need a make-specific pin-switching cable that Motortune doesn’t support yet. 3 predate the OBD socket and can’t be reached with an OBD adapter.
How much does Motortune cost?
Motortune is free to download and scan. The one-time $18.99 Motortune Pro adds clearing codes, the service reset, service functions, actuator tests and per-unit live data. No subscription, and one purchase covers every Alfa Romeo, Fiat, Abarth, Lancia, Jeep, Chrysler, Dodge, RAM, Peugeot and Citroën you own.
Motortune Pro
On the 166
$18.99 one-time
- ✓Service reset
- 18service functions
- 88actuator tests
- ✓Clear fault codes
Reading fault codes is free. One purchase covers every Alfa Romeo, Fiat, Abarth, Lancia, Jeep, Chrysler, Dodge, RAM, Peugeot and Citroën in your garage, with Family Sharing. Try Demo mode first — no adapter needed.
Coming soon to the App StoreCoverage is mapped from a diagnostic catalog of these models and is provided as-is, with no warranty. Some cars may not respond, some features may be unavailable on your car’s software version, and some adapters may be incompatible — always confirm with Demo mode and the in-app compatibility check before relying on any result. Motortune is an independent diagnostic tool and is not affiliated with, sponsored by, or endorsed by Stellantis or any of its brands. Make, model and control-unit names appear here only to describe vehicle compatibility. All trademarks remain the property of their respective owners.