Do not assume the old code works. For example:
Try the following:
There is no stable release 17.8 or 178. Common versions are: vcds 178
Recommendation: Download the latest version (24.x or 25.x) from Ross-Tech.
To give you a precise answer: Please confirm if you saw 00178 as a fault code or need an Advanced Measuring Value group labeled 178. If you share the car model, engine code, or exact VCDS screen text, I can provide the exact definition. Do not assume the old code works
In modern engine management systems, the Engine Control Unit (ECU) relies on precise data to manage fuel injection timing and ignition spark. Two critical inputs are the crankshaft position (engine speed/RPM) and the camshaft position (valve timing).
Code 178 (P0016) is triggered when the ECU detects that the camshaft position is not where it should be relative to the crankshaft position. Essentially, the engine's "brain" detects that the camshaft is either advanced or retarded beyond a calibrated threshold compared to the crankshaft. This synchronization is vital for the engine to run efficiently; a desynchronization can lead to poor performance, rough idling, or catastrophic engine failure. Try the following: There is no stable release 17
You are most likely to encounter the VCDS 178 error in three specific scenarios:
VCDS modules use hexadecimals. A module might expect 23 bytes of data, but your old guide only provides 21 bytes. When VCDS sends the shorter string, the controller rejects it with error 178.