2002–2008 Maserati M139 Quattroporte V OEM Service Manual (P/N MNA-24)

• Maserati Quattroporte V (M139) reference coverage reaches MY2004–MY2008, with application data for MY05–06 cars, Sport GT and ESP8 versions, MY07 DuoSelect, and MY07–08 ZF Automatic, Automatic Sport GT, and Automatic GTS variants.
• 1,044 PDF pages as supplied — a 731-page M139 workshop manual, 14-page spare-parts extract, 20-page bilingual Maserati Scan Tool guide, and 279 pages in the dealer-bulletin folder; one Excel campaign worksheet is also included.
• The engine repair material covers engine-and-frame removal, internal disassembly and assembly, cylinder liners, pistons and connecting rods, crankshaft and bearing selection, cylinder heads and valves, camshaft timing, dimensional inspection, and component-specific torque data.
• DuoSelect transmission procedures include clutch and thrust-bearing removal, hydraulic bleeding, clutch-position sensor adjustment, gearbox and power-unit service, PIS/Kiss Point setup, DEIS calibration, gear-grid self-learning, and accelerometer calibration with SD3.
• Automatic-specific support includes Campaign 162 drive-shaft alignment, the SD3/DSE Initial Run–Trial Run–Final Run balancing procedure, sensor and balance-weight setup, and factory tool references for the propeller shaft, differential, torque converter, seals, and fluid-level checks.
• Dealer diagnostic coverage addresses ECU/TCU, NIM, NCL, and instrument-cluster programming, software and hardware identification, software-label printing, key and proxy programming, and SD3 airbag and Advanced Weight Sensing cycle tests.

This factory workshop and North American dealer-information set suits professional technicians and experienced Maserati specialists equipped with SD2/SD3 access, vehicle lifts, and engine-building tools. Its deepest repair coverage concerns early M139 and DuoSelect cars; later bulletins extend the material into MY07 and MY08 Automatic applications.

Engine and DuoSelect Workshop Depth

The 731-page workshop manual documents engine removal with the front frame, liner installation and protrusion checks, crankshaft and connecting-rod bearing selection, cylinder-head and valve-guide work, camshaft measurement, and final timing of the continuous variators. Factory photographs, tables, and drawings include timing-reference views, bearing-selection charts, clutch-to-flywheel alignment illustrations, the vehicle earth-location map, SD3 screen sequences, and drive-shaft balancing layouts.

The DuoSelect chapters identify the NCR M139 SOFAST3 environment and tie mechanical repair to the required electronic setup. They cover power-unit removal, TCU replacement, gearbox-oil level checks, and post-repair learning and calibration. The manual also records that the gearbox oil cooler is absent on US versions and was used on other versions only through the end of 2004.

Tool references include SD3 tester P/N 95970312, clutch-centering shaft P/N 900026250, transmission support P/N 900027300, gearbox-oil level tool P/N 900027330, SD3-DSE cable kit P/N 900027400, and balancing weight kit P/N 900027520.

Software, Identification, and Campaign Data

The software documentation distinguishes applications instead of treating every transmission ECU alike. Bulletin MNA-24 assigns CFC301 hardware to MY04–05 Quattroporte; its CFC201 and CFC231 entries apply to Coupe, Spyder, and GranSport models, not the M139 sedan. The later 200742 table separates CFC301 DuoSelect configurations from ZF Automatic cars by model year, trim, and assembly range. Related bulletins cover SD3 releases 8.7.01 and 8.7.04, M139/M139EV07 loading and verification, MTOOLS, ECU/TCU reflashing, and correct diagnostic selection; the wrong environment can return false faults or incomplete data.

Instrument-cluster material covers ECU identification, service-interval behavior, vehicle start-date programming, proxy alignment, and “NACK UNKNOWN” or “INCOMPLETE VEHICLE DATA” faults. NIM and NCL updates address overhead-console lighting and climate-control software. One Tech Tips article warns that disconnecting battery power during NIT radio-code entry can permanently lock the unit and require replacement. The engine timing chapter likewise stresses the specified piston and camshaft positions to prevent valve-to-piston interference.

Useful production breaks include the clutch-sensor harness through assembly 17584, NIM Campaign 152 for assemblies 23742–23997, Automatic drive-shaft Campaign 162 through assembly 31081, and window anti-trap repairs for assemblies 27860–30774. Other bulletins address the 2005 outer-door-handle recall, oil-line and rear-caliper-hose campaigns, fuel sender and rollover-valve changes, windshield stress-crack prevention, and loaded-condition wheel-alignment data.

Scope Notes

The 14-page parts PDF is an extract rather than a complete catalog; it contains M139_B Release 1.0 groups 1.40–1.44 and 5.20 for intake, air filter, fuel tank, fuel pumps and vapor control, and pedal-support parts. The set does not include a complete wiring-diagram manual, although it does provide earth-location drawings and control-unit location, removal, learning, and programming information. Automatic coverage is supplemental and does not contain a full internal ZF transmission overhaul chapter. The PDFs document dealer software procedures but do not include the MODIS/SD3 software or credentials.

The bulletin folder contains 71 PDFs plus one spreadsheet. It mixes repair data with warranty or administrative notices and some Coupe, Spyder, and GranTurismo material; two US/Canadian door-handle recall PDFs are duplicated under alternate filenames. Drive-shaft balancing involves a rotating driveline on a raised, supported vehicle, while fuel, refrigerant, brake, and electrical repair requires the isolation and workshop precautions stated in the manual.