Hi All,
A few weeks back I had a very weird issue with my S-Cross 1.3 Zeta. The issue persisted for several weeks and after several attempted fixes by the dealership service engineers, it seems to be fixed now (although I"m still observing it to be 100% sure). However, I am worried as I do not know what exactly has caused this issue and the service engineers also seemed clueless as to how it happened.
This issue used to occur when I drive the car and not when the car is at standstill. So when I'm driving, I would suddenly notice that the Parking brake light (RED color) and the adjacent ABS light (ORANGE color) in the instrument cluster used to turn on. The lights would remain on for a few seconds and go off automatically. This happened several times, mostly in the evenings when I used to go back home from work (a 35 kms distance). This issue used to get triggered mostly (95% of times) when I use the right stalk to flash lights at vehicles who used to come into my lane, but this issue used to never happen when the headlights were on and I used to flash the lights. I did not pay much attention to this issue (thinking it was a minor glitch) and continued to use the car. There was no issue with the brakes of the car, even the above mentioned lights used to come on properly when car was started and then turn off, as per the manual. So I ignored the problem.
A few days later, I faced the same issue but the lights stayed on for more time than usual. Then, a few kms away, I encountered a situation where I had to brake very suddenly and I noticed that the car took longer than usual to come to stand still. Now I was worried and I took the car to service station the next day. I told the service advisor to check the braking system of the car and maybe, if there is some issue with brake fluid level or something. He checked the car properly, including the braking capabilities, brake fluid level and even if there was some electrical issues. But he found nothing. Even there were no error codes in the car system. Later, I even took a long test drive with him and one of the mechanics, who was sitting at the back with the laptop hooked onto the car. This time I could not reproduce the issue at all and we all thought that it was fixed.
I drove the car for a few more days and there were no issues. A few days later, the issue re-surfaced when I flashed lights at oncoming traffic. And this time I noticed several other things as well. When the brake lights came on, I noticed that the speedometer used to move to zero and stay at zero. When the brake lights went off, the speedometer used to move back and indicate current speed. Additionally, the back light of the instrument cluster used to keep flickering. I used to also see the light which indicates that steering wheel is locked. If the car was in reserve, I would get the reserve beep as well. So basically the entire right portion of the instrument cluster was affected. But wait there's more. Once or twice I even got the feeling that the steering was a bit unresponsive when I tried to move it a little to negotiate a small curve in the road.
This freaked me out totally. I decided not to drive the car. I some how reached home and moved the car into the parking lot. The car had its headlights on and I was rolling up the windows before I turned off the ignition. I noticed that when I pressed the buttons to roll up the windows, the headlights began to flicker.
I turned off the ignition but the headlights were on. I received a phone call at that time and I was in the car talking for about 5 mins. After I ended the call, I noticed that I could not unlock the car doors using the button on the driver door. The headlights were already off.
The start/stop button was not working and even the brake was hard and could not be depressed. It was like somebody locked the car with me inside the car, but in this case I did have the car keys with me. I manually unlocked the door using the manual switch and opened the door and exited. I had the key with me. Then, I shut the door. The moment the car door closed, the car came back to life. The head lights came on and instrument cluster was lit (because I had pressed the start/stop button previously). I switched off the instrument cluster lights and locked the car. I had a video recorded (could not upload it here as it does not allow me to attach video) of the lights coming on and I sent it to service adviser.
The next day, the service adviser came with his entire team and equipment to my house. He was able to detect the cause of the problem by hooking on the laptop to the car and he said that he has fixed the issue. It took him 15-30 mins in total. When I asked him what the issue was, he told me that there was some issue with the earthing. So it was an electrical issue after all. But he could give me a satisfactory answer as to what caused it.
Now I've driven the car around 5-6 times after he made the fix and I cannot reproduce the issue at all. However, I now observe that the car is behaving really well now, much better than what it was all this while (last 6-7 months). The gear shifting is smooth, the acceleration is better and even the brakes are performing much better now. I do not understand what kind of fix was done, but it seems like the car has been rejuvenated.
Which brings me to my concerns:-
1. Was there some major electrical issue which was lurking out there? And finally it came to the fore?
2. Why has the car's overall handling and performance improved post the fix? Was the latent issue causing problems with car's performance all this while?
3. What was the cause of the issue? Can it happen again? Can such issues cause severe problem like steering wheel getting locked (its EPS)?
What are your thoughts?