1988 Audi 5000 CS, StandardFACTORY OEM SERVICE PROCEDURE

Ignition System: Description

NOTE: Ignition system on Audi 90 and 5000S models equipped with 2.3L engine is controlled by the CIS-E III electronic control system. On Audi 5000CS Quattro and 5000CS Turbo models, ignition system is controlled through the Digital Control System computer which also uses a manifold vacuum input signal.

The typical Bosch Hall Effect electronic ignition system consists of an ignition coil, distributor with Hall Effect sending unit, Hall ignition control unit (except Audi 5000CS Quattro and 5000CS Turbo vehicles), vacuum and centrifugal advance mechanisms (some models).

Chapter Navigation
Return to Chapter: Ignition System
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

Shop Manual-Ready ToolsCompare Repair QuoteQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.