Fitment notes: Battery located in engine compartment; European style battery group
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Every control module on the 1989 Porsche 944S2 — where it lives, replacement time, and what it takes to program a replacement. Modules marked dealer / factory tool won't work after a part swap alone — budget for programming.
Instrument Cluster (Kombi)1.8 hr R&Rno coding
📍 Dashboard behind instrument panel
⚠️ Odometer mileage stored in cluster; no electronic transfer capability in this generation
Anti-lock Brake System Control Unit (ABS)1.5 hr R&Rno coding
📍 Engine compartment, passenger side near firewall
⚠️ Bosch ABS 2S system; bleeding procedure required after replacement
Digital Motor Electronics (DME)1.2 hr R&Rdealer / factory tool +0.5 hr▸ programming details
📍 Engine compartment, driver side firewall near brake master cylinder
🔧 Porsche System Tester PST1/PST2
⚠️ Bosch Motronic 2.5 system; EPROM replacement may be required instead of full module coding for some updates
Climate Control Unit (A/C Control)1.0 hr R&Rno coding
📍 Center console behind climate control panel
⚠️ Electronic climate control on models so equipped; manual systems are purely mechanical
Radio Head Unit (Radio)0.8 hr R&Rno coding
📍 Center console dashboard
⚠️ Blaupunkt or Becker unit; may require security code after battery disconnect
Aftermarket tool coverage varies by software version and vehicle build — treat "aftermarket tool" rows as "usually possible" and verify against your tool maker's coverage list before promising a customer. Spot a wrong location or hour? Tell us — corrections ship fast here.
Size-standard part numbers — verify your connector type before buying. Rear blades are model-specific; check the package's vehicle list.
Fuel economy figures are EPA data via fueleconomy.gov (median across matching trims). Performance figures are compiled estimates for the 1989 Porsche 944S2 3.0L I4 and can vary by trim.
🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Mechanic · 20+ years.