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Old 17th July 2017, 18:15   #136
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Default Re: Mahindra Xylo E8 (ABS):-Spacious, Feature-Packed, 8-Seater, Head-Turner Beast is Here

Hi friends,

My Vehicle: Xylo E6 (June-2010 model), current ODO = ~183000 KMs

Topic: Alternator issues, resolved.

This May'17, I was on a long road trip and this problem happened when OD was about ~177000 KMs.

Symptoms:
- bit delayed cranking, system reset just like when battery disconnected (DIS console readings were reset, HU settings reset);
- voltage drops, affecting electrical devices (AC, lights, horns, music system etc);
- battery not charging properly;

I had installed this Lighter Socket splitter & charger (link) it was showing voltage changes in real-time, and low-voltage resulted in blinking digits.

Very useful gadget, apart from multiplying your socket & USB points, you will know real-time about voltage changes when you start your regular tasks eg. mobile charging (low), horn, headlights, AC, power-window (worst), etc.
Standard voltage should be 12.5v on a vehicle not started, without running any device. On a running vehicle, the voltage should be ~14v, depending on how many devices are running.

Troubleshooting (identifying the real cause!):
When the voltage dropped, affecting the electrical devices to ill-perform, it was clear that problem was in electrical department, but where ?!

I really didnt doubt battery, as it was changed just a year back in April 2016 (link (Amaron batteries)) and just before leaving on this trip I had got the battery checked at my known shop, found it OK.
Still I did some tasks for peace of mind. Firstly, cleaned the terminals, inserted a small wire piece to get proper contact of terminals. Next, at a shop got the battery checked, one of cell was bit fuming, and battery was not showing fully charged. But technically, with such a long trip and daily long drive, I doubted any issue within battery for being low charged. I know, things can go wrong anytime, but still. Also, when the vehicle was running on good speed, as per me the electricals should have worked properly, but it didn't!


In all these 7 years, never did I touch the alternator (TVS-Lucas make OEM fitted), but I was somehow getting a feel that something was wrong within the alternator. Found a Bosch authorized shop, and explained the issue. The guys were really efficient, the battery was checked, and also the alternator cover was opened. The alternator was just kept mounting, no changes. From inside, the voltage regulator part was removed, and found that carbon brushes were totally worn-out. Voila, the problem was identified, and it wasn't really a big problem, and pretty pocket friendly too. These brushes, spring-mounted, keep rubbing (electrical contacts) on the coil underneath it, wound on the alternator. Over the years, these brushes can worn-out. I was told that new 'original' Lucas Regulator would cost around Rs.800, and I said OK to it.

However, the guy did a workaround (jugaad), and just soldered new brushes on the existing regulator, quote mere Rs.180. They informed me that new part was somehow misplaced in their shop, and may take time to search. The engineers and even owner were nice people, and they really help me in distress situation. The vehicle was now properly starting, but I was told to keep running the vehicle for 50+ KMs without any electrical devices (AC, music etc), and the battery will soon get properly charged. I asked if this workaround will really work, I was confidently replied that no issues with such solution. After running the vehicle for some time, I kept noticing the voltage on my gadget, and now it was all good. Finally I started the AC, and the cool air made us comfortable.

I completed my trip properly, without any issues, and also drove for few more days in local. But I didn't want to take any chance on above solution, and few days back got a new Voltage Regulator (Rs.700), and had it fixed. The earlier regulator is kept as spare for now. I still got the battery re-checked at my regular guy's place, it was all OK.

Attached file contains the pictures for explanation.

Suggestion: Like in my case, opening of voltage regulator on alternator takes just 5 minutes, it would be worth-while to check this part if your vehicle is older than 3-4 years.

regards,
Pranav
Attached Files
File Type: pdf alternator regulator (Xylo).pdf (1.80 MB, 134 views)
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Old 17th July 2017, 20:22   #137
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Default Re: Mahindra Xylo E8 (ABS):-Spacious, Feature-Packed, 8-Seater, Head-Turner Beast is Here

@pranav, jacs and the fellow Xylo owners
Hi guys,
Sharing a picture of Xylo I found on Xylo Facebook page just because its worth it.
Do you think that it has upsized tyres? Xylo definitely looks stunning in this picture.
I have read posts after posts but seems no one ever upsized the tyres on a Xylo. Even I am skeptical about it as it may impact negatively on the handling and suspension aspect of the vehicle, but 215/75 R15 looks too small for its size.
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Last edited by wrongturn : 17th July 2017 at 20:25.
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Old 18th July 2017, 17:11   #138
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Default Re: Mahindra Xylo E8 (ABS):-Spacious, Feature-Packed, 8-Seater, Head-Turner Beast is Here

Quote:
Originally Posted by wrongturn View Post
@pranav, jacs and the fellow Xylo owners
Hi guys,
Sharing a picture of Xylo I found on Xylo Facebook page just because its worth it.
Do you think that it has upsized tyres? Xylo definitely looks stunning in this picture.
I have read posts after posts but seems no one ever upsized the tyres on a Xylo. Even I am skeptical about it as it may impact negatively on the handling and suspension aspect of the vehicle, but 215/75 R15 looks too small for its size.
Hi,
indeed a beautiful pic, Xylo is easily capable of all such (& more) terrains.

Looking at the pic, I think they are stock size tyres with stock alloys (H9 model ?). I suggest if you can connect with that user ("Firosh Aryadan") and query him directly, I saw he's on FB (sry, I dont have FB acct!!). As you also pointed, bigger tyres could negative effect on the handling & stability.

The initial Xylo batches, E series had more body roll ("boat-effect"), which was addressed to great extend in H series, major tweaks within in the suspension, and some minor changes in body. However, in general, Xylo has a higher Center of Gravity as compared to other SUV/MUV (eg. Scorpio, Bolero, Innova) and hence it may still have a slight roll. In my vehicle, I have noticed that even tyre pressure plays a big role in providing stability.
With a loaded vehicle, one will hardly feel such roll, and it keeps planted to road even on high speeds. Caution to be observed on high speeds, as it behaves differently on turns or while braking. Once you know the vehicle better, you can do too good with you

regards,
Pranav
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Old 18th July 2017, 19:03   #139
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Default Re: Mahindra Xylo E8 (ABS):-Spacious, Feature-Packed, 8-Seater, Head-Turner Beast is Here

Quote:
Originally Posted by pcpranav View Post
Hi,
indeed a beautiful pic, Xylo is easily capable of all such (& more) terrains.

Looking at the pic, I think they are stock size tyres with stock alloys (H9 model ?).

The initial Xylo batches, E series had more body roll ("boat-effect"),

regards,
Pranav
I am a proud owner of Xylo H4 ABS 2015. Its a very capable tourer indeed and I have taken it to some challenging terrains already.
Never had any complaints with the suspension setup or drivability or handling or power its a perfect package for the price, incredibly VFM.
IMHO these are not stock alloys and even if they are of size 15 still the sidewall of tyres look taller than the usual 215/75 R15 that comes as standard with Xylo. I am confident its an upsize because there was another pic which clearly showed wider tyres than usual.
The facebook pic of Xylo is from year 2012, and I left a message but got no response.
Thanks for the reply.

Regards
Abhishek
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