Lizard_Of_Bodom
01-04-2024, 03:54 AM
Hi all
For the second time since I got the car I experienced the power loss yesterday when driving. First time happened like month ago, ignored it "to observe" but yesterday it happened again, this time when cruising 110kmh on 4th gear @3000RPM (DSG in Manual mode). Car just lost power & reaction to gas pedal for about second, maybe 2. It felt like fuel supply was cut off or something similar (just describing the feeling). No engine light, no errors on dash, also no codes stored after checking with VCDS.
130k kms on the clock, 2012 S4 B8.5, fully serviced since I got it at 120k kms (all fluids, spark plugs etc). Have the car since August.
- If that happens again (and I have feeling it will) - what can I do to pinpoint the issue further? Is there any way to retrieve any useful data if no fault was stored? I understand VCDS would retrieve freeze frame fault info if there was fault stored but otherwise is there any data I can look for anyway?
Not gonna drive with VCDS conencted & logging (for now) as it happened only twice within last 10k kms, so far.
- any pointers what I can observe visually when that happens again? I already excluded DSG issue (first time happened on acceleration, thought it could be gear change hesitation), yesterday it was on steady cruise. Fuel was way above reserve, coolant temp in the middle, car was warmed up atleast 30mins.
- do you recommend using injector cleaning fuel additive to clean up the system a bit in case its related to fuel? Using 95 (E10) in Ireland.
many thanks for any tips.
For the second time since I got the car I experienced the power loss yesterday when driving. First time happened like month ago, ignored it "to observe" but yesterday it happened again, this time when cruising 110kmh on 4th gear @3000RPM (DSG in Manual mode). Car just lost power & reaction to gas pedal for about second, maybe 2. It felt like fuel supply was cut off or something similar (just describing the feeling). No engine light, no errors on dash, also no codes stored after checking with VCDS.
130k kms on the clock, 2012 S4 B8.5, fully serviced since I got it at 120k kms (all fluids, spark plugs etc). Have the car since August.
- If that happens again (and I have feeling it will) - what can I do to pinpoint the issue further? Is there any way to retrieve any useful data if no fault was stored? I understand VCDS would retrieve freeze frame fault info if there was fault stored but otherwise is there any data I can look for anyway?
Not gonna drive with VCDS conencted & logging (for now) as it happened only twice within last 10k kms, so far.
- any pointers what I can observe visually when that happens again? I already excluded DSG issue (first time happened on acceleration, thought it could be gear change hesitation), yesterday it was on steady cruise. Fuel was way above reserve, coolant temp in the middle, car was warmed up atleast 30mins.
- do you recommend using injector cleaning fuel additive to clean up the system a bit in case its related to fuel? Using 95 (E10) in Ireland.
many thanks for any tips.