TT Quattro Coupe V6-3.2L (BHE) (2005)
c. Switch off the air conditioning and all other electricity consumers.
d. Read Measuring Value Block (Display Group) 208 and 209.
e. Ensure that idle speed is not above 640/min in MVB 208/209 (Figure 1, black arrow).
The measuring value blocks 208 and 209 show the sequence of crankshaft and camshaft for the intake and exhaust camshaft (Figure 1, white arrow) in
°KW.
With excessive chain lengthening, the idle values will be below -8.0°KW, or the displayed fields will be empty.
2. If idle value of 208/209 is above or equal to -8° (f.e. -8°...2°):
^ Check the camshaft position sensors and the RPM sensor for malfunction using Guided Fault Finding.
^ Do not perform any repairs on the timing chains.
If idle value of 208/209 is below -8° (f.e. -9°...11°), or if no values are shown:
^ Check the camshaft position sensors and the RPM sensor for malfunction using Guided Fault Finding.
^ If the camshaft position sensors do not show a malfunction, visually check the upper timing chains for excessive lengthening.
Visually check upper timing chains for excessive lengthening
1. Switch engine off.
2. Remove both camshaft position sensors.
3. Adjust cylinder #1 to the TDC position. Use the mark on the pulley.