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TechVault

Structured around the BMW Workshop Manual, refined with real-world insight.

Home • TechVault

The TechVault is the growing knowledge base for BMW E9 owners, restorers, and enthusiasts — built by enthusiasts, for enthusiasts, and structured around the original workshop manual for easy navigation. Everything is designed to be easy to find, understand, and use when working on your car.

The TechVault is not a replacement for community forums such as E9Coupe — it complements them by focusing on structured, workshop-style reference material rather than discussion threads. Browse selected content for free, or become a Paid Member to unlock the full archive of technical guides, restoration content, videos, and all future additions.

The TechVault is continuously enriched with real-world E9 owner experience and selected community insights, carefully refined into structured, workshop-style reference material.

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CORE OWNERSHIP GUIDANCE

Essential knowledge for understanding, maintaining, and operating your E9

– Included with your Free access –

MAINTENANCE & GENERAL TIPS

##. Torque Values (planned)
##. Oil Change (planned)
##. Brake Fluid Change (planned)

PROJECT CAR

HISTORICAL INFORMATION

##. The E9 History (planned)
##. Production Numbers and Variants (planned)

TOOLS & DIAGNOSTICS

##. Troubleshooting Guides (planned)

SAFETY & LEGAL

##. Fire Extinguishers (planned)
##. Trackers (planned)
##. Recommended Equipment (planned)
##. General Inspections (planned)
##. Importing/Exporting Vehicles (planned)

WORKSHOP ARCHIVE

In-depth technical procedures, system breakdowns, and advanced diagnostic and restoration guidance.

– Included with your Paid access –

RESTORATION PROJECTS

##. Tool: Cost Tracker (planned)
##. Recommended Garages (planned)
##. Barn Finds: What To Look For (planned)
##. Sourcing Rare Parts (planned)

PRODUCT REVIEWS

01. Distributor – 123ignition (free)
02. Fire Safety Stick (free)

VIDEOS

ENGINE

##. The M30 – Part 1 – Development (planned)
##. The M30 – Part 2 – Block (planned)
##. The M30 – Part 3 – Cylinderhead (planned)
##. The M30 – Part 4 – Fuel System (planned)
##. The M30 – Part 5 – Auxilaries (planned)
##. Guide: Buying 2nd hand (planned)

ENGINE - ELECTRICAL

##. Replacing the Starter Motor (planned)
##. Replacing the Alternator (planned)

FUEL SUPPLY & ADJUSTMENTS

##. Electrical Fuel Pumps (planned)

FUEL TANK AND LINES

RADIATOR

EXHAUST SYSTEM

##. Sport Exhaust Manifold (planned)

CLUTCH

TRANSMISSION - MANUAL

##. Converting to a 5-speed (planned)

TRANSMISSION - AUTOMATIC

##. Converting to a Manual (planned)

GEAR SHIFT MECHANISM

DRIVE SHAFT

FRONT AXLE

STEERING & WHEEL ALIGNMENT

REAR AXLE

BRAKES

10. Replacing the Handbrake Cables (planned)
##. Converting Drums to Discs (planned)

PEDAL ASSEMBLY

##. Adding & Removing Pedals (planned)

WHEELS & TYRES

00. Theory Explained (planned)
01. Modern Options (planned)

SUSPENSION

##. Upgrading Springs & Shock Absorbers (planned)

BODY

BODY - INTERIOR EQUIPMENT

37. Electric Window Motor (planned)

SEATS

SLIDING ROOF

CHASSIS - ELECTRICAL

01. Battery – Modern Options (planned)

INSTRUMENTS & LIGHTS

11. Removing the Instrument Cluster (planned)

HEATING & A/C

RADIO & ACCESSORIES

EQUIPMENT PARTS - ENGINE & CHASSIS

EQUIPMENT PARTS - BODY

PAINTWORK & FABRICS

01. Colours & Fabrics (planned)

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