Hey guys,
I own pkdm cultus 2017 (celerio) MT with 160k kms on the odo. I bought this car last November, when the AC season was almost gone.
Now, with AC ON when I shift gear, the rpm gets drowned to 450~500 & engine vibrates like anything. Without AC, no such issues.
Same happens when I press the clutch pedal on a moving car, engine starts vibrating with AC.
However, on idle, it maintain rpms fine, no matter AC on or off.
P.s. Please note that car is well-maintained. Using 5w-30 oil. Cat con seems fine, as it can fetch top speeds easily like once I kept the speed maintained around 155 kmph for good 100 km patch on motorway.
Air filter is good. Throttle cleaned some 10k kms back. Spark plugs are non-iridium.
I discussed this issue with a mechanic, he said this a common issue in these k10b wagorR's & cultus'es.
If anybody of you faced any such issue. Need your input.