Porsche 718 Boxster S | Cayman S & GTS (2.5L) Service Intervals

Maintaining your Porsche 718 Boxster S or Cayman S/GTS 2.5L is essential for long-term performance, reliability, and value retention. Our comprehensive Porsche 718 2.5L service guide below clearly outlines the exact maintenance requirements, service intervals, and available service options for your mid-engined 718.

As a Porsche Partner Network–approved independent, all servicing completed by our affiliate network is digitally recorded on the official Porsche Service Portal under dealer number DDA6861. This ensures your 718 Boxster or Cayman retains a complete, factory-recognised online service history, which is critical for preserving your Porsche warranty and maximising future resale value.

Choosing a Porsche Partner Network specialist such as Genome Design also delivers significant cost savings compared with an Official Porsche Centre, while still guaranteeing that all work is carried out by Porsche-trained technicians and completed to full factory standards.

Model Specific Applicability:-

Applicable Models: Porsche 718 Cayman S | GTS Porsche 718 Boxster S | GTS

Engine Variant: 2.5L Turbocharged Flat-Four (S and GTS models)

Model Years: 2016–Present

Transmission Options: 6-Speed Manual |7-Speed PDK

Service Parts Options:

• OEM-equivalent replacement components (cost-effective option for vehicles outside Porsche warranty)

• Genuine Porsche OEM parts (required for Porsche warranty retention)

Porsche 718 2.5L S & GTS Service Overview:

Porsche GB specifies a 2-year or 20,000-mile service interval for all Porsche 718 models, alternating between minor and major services, with additional age- and mileage-dependent maintenance items required at defined intervals.

For the Porsche 718 Boxster and Cayman 2.5L S and GTS, major services include spark plug replacement, air filter renewal, and comprehensive drivetrain inspections. PDK fluid and filter changes, differential oil servicing, and manual gearbox oil replacement are required at extended intervals or depending on vehicle age, mileage, and usage conditions.

Detailed Service Schedule for 718 2.5L S / GTS:-

2 Year / 20,000 Mile Service - First Minor Service

The initial scheduled service for your Porsche 718 Boxster S or Cayman S/GTS (2.5L) is due at 2 years or 20,000 miles. This service comprises a minor service along with a mandatory brake fluid replacement, in line with Porsche GB requirements.

Service Items Included:

• Mobil 1 FS 0W-40 engine oil and filter renewal

• Porsche or Mahle oil filter

• Porsche / Mann cabin (pollen) filter

• Porsche / Mahle activated carbon filter

• Motul RBF660 brake fluid replacement (required every 2 years)

• Full vehicle diagnostic scan

• Brake system inspection

• Chassis, suspension, and steering geometry visual inspection

• Battery performance and condition test

• Exhaust and underbody corrosion inspection

• Tyre wear and pressure assessment

4 Year / 40,000 Mile Service - Major Service

The 4-year / 40,000-mile service introduces major service requirements in addition to all standard 2-year service items, in accordance with Porsche GB servicing schedules.

Normal Minor Service Parts:

• Mobil 1 FS 0W-40 engine oil and filter renewal

• Porsche or Mahle oil filter

• Porsche / Mann cabin (pollen) filter

• Porsche / Mahle activated carbon filter

• Motul RBF660 brake fluid replacement (required every 2 years)

• Full vehicle diagnostic scan

• Brake system inspection

• Chassis, suspension, and steering geometry visual inspection

• Battery performance and condition test

• Exhaust and underbody corrosion inspection

• Tyre wear and pressure assessment

Additional Major Service Tasks:

• Spark plug replacement (Porsche OEM or Bosch)

• Engine mount inspection

• Driveshaft and axle rubber boot examination

• Coolant condition and concentration testing

• Under-tray removal with detailed sub-frame inspection

• Turbocharger actuator operation and movement check

6 Year / 60,000 Mile Service - Third Service

At 6 years or 60,000 miles, the scheduled service mirrors the standard 2-year service interval, with the addition of specific component replacements based on age and mileage.

Normal Minor Service Parts:

• Mobil 1 FS 0W-40 engine oil and filter renewal

• Porsche or Mahle oil filter

• Porsche / Mann cabin (pollen) filter

• Porsche / Mahle activated carbon filter

• Motul RBF660 brake fluid replacement (required every 2 years)

• Full vehicle diagnostic scan

• Brake system inspection

• Chassis, suspension, and steering geometry visual inspection

• Battery performance and condition test

• Exhaust and underbody corrosion inspection

• Tyre wear and pressure assessment

Additional Components Replaced:

• Engine air filter (Porsche, BMC, or Blueprint options available)
• Auxiliary drive belt renewal (water pump drive belt)

8 Year  / 80,000 Mile - Major Service

This service interval repeats the full 4-year major service requirements, with no additional scheduled replacement components.

At this stage of ownership, we strongly recommend carrying out a comprehensive 111-point inspection, with particular focus on turbocharger condition, external engine ancillaries, and other age-related wear items.

Normal Minor Service Parts:

• Mobil 1 FS 0W-40 engine oil and filter renewal

• Porsche or Mahle oil filter

• Porsche / Mann cabin (pollen) filter

• Porsche / Mahle activated carbon filter

• Motul RBF660 brake fluid replacement (required every 2 years)

• Full vehicle diagnostic scan

• Brake system inspection

• Chassis, suspension, and steering geometry visual inspection

• Battery performance and condition test

• Exhaust and underbody corrosion inspection

• Tyre wear and pressure assessment

Additional Major Service Tasks:

• Spark plug replacement (Porsche OEM or Bosch)

• Engine mount inspection

• Driveshaft and axle rubber boot examination

• Coolant condition and concentration testing

• Under-tray removal with detailed sub-frame inspection

• Turbocharger actuator operation and movement check

12 Year  / 120,000-Mile Major Service With Gearbox Service

The 12-year / 120,000-mile service represents the most comprehensive maintenance interval for Porsche 718 Boxster S and Cayman S/GTS (2.5L) models. This service includes all major service requirements, along with critical transmission and drivetrain fluid replacements.

Normal Minor Service Parts:

• Mobil 1 FS 0W-40 engine oil and filter renewal

• Porsche or Mahle oil filter

• Porsche / Mann cabin (pollen) filter

• Porsche / Mahle activated carbon filter

• Motul RBF660 brake fluid replacement (required every 2 years)

• Full vehicle diagnostic scan

• Brake system inspection

• Chassis, suspension, and steering geometry visual inspection

• Battery performance and condition test

• Exhaust and underbody corrosion inspection

• Tyre wear and pressure assessment

Additional Major Service Tasks:

• Spark plug replacement (Porsche OEM or Bosch)

• Engine mount inspection

• Driveshaft and axle rubber boot examination

• Coolant condition and concentration testing

• Under-tray removal with detailed sub-frame inspection

• Turbocharger actuator operation and movement check

Additional Transmission & Drivetrain Service Items:

• PDK hydraulic control unit fluid replacement

• PDK clutch oil change

• Manual transmission oil renewal

• Differential oil replacement

PRICING MATRIX:

Trackday Servicing for 718 Boxster S & Cayman S/GTS:-

For Porsche 718 vehicles used regularly on track, we strongly recommend an enhanced maintenance schedule beyond standard road-use servicing, including:

• Halving standard service intervals

• Interim servicing every 3–6 trackdays

• Increased gearbox service frequency

• Frequent inspection of tyres, braking systems, and drivetrain components

Our facility offers comprehensive trackday preparation, detailed health checks, and high-temperature fluid upgrades specifically tailored to the Porsche 718 platform.
Contact our team to discuss bespoke pre-track and post-track inspection packages designed around your usage and performance requirements.

Frequently Asked Questions:-

Does servicing outside an Official Porsche Centre void my warranty?

No. When servicing is carried out by a Porsche Partner Network–approved independent such as Genome Design, all work is recorded on the official Porsche digital service system. This ensures both new-car and extended Porsche warranties remain fully valid.

Should I consider additional interim services?

For road-only vehicles, interim servicing is optional but can be beneficial for long-term reliability and component longevity.
For track-driven vehicles, we strongly recommend interim services between major intervals to provide enhanced mechanical protection and significantly reduce the risk of component failure.

Can I wait onsite during my service?

Yes. Our facility is located at The Motorist, offering a restaurant, retail store, super-fast Wi-Fi, and Sky Sports. Services lasting up to four hours can comfortably be completed while you enjoy the venue.

Should I choose Porsche OEM or aftermarket parts?

If your vehicle is under a Porsche manufacturer or extended warranty, genuine Porsche OEM parts are required.

If your 718 is outside Porsche warranty (or covered under our Genome extended warranty), we recommend high-quality OEM-equivalent components from manufacturers such as Mahle or Bosch, delivering identical performance and reliability at a significantly reduced cost.