Maintenance at a glance: intervals and checks
Which intervals are known, why they are only guide values and how the service book helps.
In short: The manufacturer’s maintenance schedule for your model and model year is authoritative. The values here come from secondary sources and are unverified – they help with orientation but do not replace a schedule.
Known guide values
The table below sums up what we can document: oil changes, brake and clutch checks, belt changes. For oil there is a general Porsche recommendation that is explicitly not 944-specific; in practice oil is often changed much more frequently.
Age-related work
Rubber parts age even with low mileage. Timing belt, balance shaft belt and water pump have their own articles; they also explain why we only publish tension values after review.
Miles and kilometres
Many figures come from the US and are in miles. One mile is about 1.6 km – so 15,000 miles is roughly 24,000 km.
The 944.world service book
In the digital service book you can enter your own intervals from your car’s maintenance schedule. Reminders are only created from your entries or from values published as verified.
Technical values
Only work with the workshop manual and the correct tools. Do not use unverified values without checking them – wrong tension values can destroy the engine.
| Value | Figure | Condition | Status | Source |
|---|---|---|---|---|
| Oil change, general Porsche recommendation, Turbo | every 7,500 miles | General recommendation, not 944-specific | unverified | [1] |
| Oil change, general Porsche recommendation, naturally aspirated | every 15,000 miles | General recommendation, not 944-specific | unverified | [1] |
| Check brake system | at least every 15,000 miles | – | unverified | [2] |
| Check clutch wear | at least every 15,000 miles | – | unverified | [3] |
| Timing belt change (guide value) | every 30,000 miles (30–40,000) | – | unverified | [4] |
| Binding intervals for all work | — pending | Manufacturer's maintenance schedule | pending | [5] |
Sources
- Secondary source Oil and Filter Replacement
Oil change, capacity, filter.
- Secondary source Checking the Brake System
Checks and brake pad wear limits.
- Secondary source Clutch Disc Wear Check
Wear check through the inspection port on the clutch housing.
- Secondary source Porsche 944 buying checklist (PDF)
Buying checklist ordered by area.
- Primary source Werkstatthandbuch 944 / 944 Turbo – Abschnitte Zahnriemen und Ausgleichswellen
The authoritative primary source. Not yet consulted – all values in the article remain unverified until checked.