[Safari_Beast]

Hello me_sid

Great to hear that engine is getting replaced , from next time always do the oil change at what mahindra has mentioned in manual . Engine oil takes some time to bed in the engine , theres no point of changing the oil at very short interval as you did . Hope you get your XUV on time .

[anujmishra]

Originally Posted by Safari_Beast

Hello me_sid

Great to hear that engine is getting replaced , from next time always do the oil change at what mahindra has mentioned in manual . Engine oil takes some time to bed in the engine , theres no point of changing the oil at very short interval as you did . Hope you get your XUV on time .

I also agree with this. Lets not over maintain these machines. Cars should be maintained at manufacturer recommended intervals. Manufacturers will not put axe on his foot for over recommending duration. I have Tata Safari and never change oils frequently and it goes well.

Great, that your engine replaced.

[SS-Traveller]

Originally Posted by Safari_Beast

Engine oil takes some time to bed in the engine...

Could you kindly explain how this happens? And how long does engine oil take to "bed in the engine"??

[saket77]

Originally Posted by Safari_Beast

Engine oil takes some time to bed in the engine

Engine oil readily flows through the clearances and the moving parts. There is nothing to 'bed' into.
In fact, the term is often used to describe how parts in a brand new engine such as pistons, valves and other internal engine parts run-in. In that case, the metallic parts 'bed in' by skimming off slowly. That typically happens when the car/ engine is in the running-in period.

Regards,
Saket

[me_sid]

Originally Posted by Safari_Beast

Hello me_sid

Great to hear that engine is getting replaced , from next time always do the oil change at what mahindra has mentioned in manual . Engine oil takes some time to bed in the engine , theres no point of changing the oil at very short interval as you did . Hope you get your XUV on time .

Hi, engine oil and bed in? Can you please clarify. Bed in of engine components? Yes ! Thats why running in I suppose.

Originally Posted by anujmishra

I also agree with this. Lets not over maintain these machines. Cars should be maintained at manufacturer recommended intervals. Manufacturers will not put axe on his foot for over recommending duration. I have Tata Safari and never change oils frequently and it goes well.

Great, that your engine replaced.

Hi anuj,

Going by the books ,running in isn't required. Would you do that to your brand new car? I dare not.They say the oil change is required at 15k interval after the initial change at 5k (AFAIK). No change after running in &15k interval oil change? In a petrol engine which is less prone to wear and tears I have done it religiously at 5 k level, and my baleno after 10 years still red lines smoothly. They also dont tell you about idling rules on a turbo engine, heck it's not even followed in the workshops. Now you tell me bro why should I follow those things by the book.
I changed precisely at 1k level after running in, then it was changed at the usual 5k (as stated in the manual) and then again I did at 11k after this trip. (Average around 3.67k).
Having said that, now I would do the running in flush it properly and then leave it in the name of Lord Almighty Manual.

[Sutripta]

Originally Posted by Jeroen

You mean a replacement engine gets the same serial number as the original engine?

The norm in India.
Always wondered about the ISO 9000 and excise angles.

Regards
Sutripta

[BlackPearl]

Sorry to hear about this incident. Good that you are getting the engine replaced. Should not the turbo be also part of the replacement?

[F150]

Just love the way M&M owns up their failures and replaced the engine, no questions asked.
I will seriously consider M&M for my next purchase.

The wait for the new engine begins !!

[S5157]

Originally Posted by Sutripta

The norm in India.
Always wondered about the ISO 9000 and excise angles.

Regards
Sutripta

We had our Ertiga's engine assembly replaced under warranty by Maruti. The new engine assembly had a new serial number. As per Maruti each engine number is unique and we can't have two engines with same serial number. The dealer then helped with RTO formalities and got the new engine number updated on the RC book.

[hanozmogrelia]

This is a very good post. It really lists out what to do; and more importantly … what not to do.
I must admire your patience.
Hope all goes well. Thanks for sharing

[veyron_head]

Glad that the issue is resolved.

And I am even more glad about the way M&M dealt with this. Unfortunate incidents like this, however rare they are, can become a PR disaster or on the flip side can actually help the brand when handled well. Full marks for M&M!

[rahulya007]

Originally Posted by Vikas Arora

Glad to know that M&M has agreed to replace complete engine. Handling of this case must be a showcase for other auto companies in India. There is still a chance that this failure might have happened due to contaminated oil which could be due to dealer's (or oil supplier's) negligence but M&M owned this up and agreed to replace the engine. Had this happened with some other brands in India, I am sure reaction from the company would have been very different.

Way to go M&M

Hi,

I own a Xylo mHawk E9 and I am also an employee of M&M group company. Both the things are not interrelated though.
What I got to know from someone close by is Anand Mahindra, Chairman of M&M, personally looks upon the Customer Care. Head of Customer care needs to send him a report daily on how many complaints received, how many resolved, how many pending and for what reason etc. Even if the report is missed for a day, Mr. Mahindra calls up the CC Head at any time of the day or night asking for the report. The simple logic behind this is - Customer is busy and does not have time, if there is a mail from a customer, it means there is seriously something to be attended to.
Probably this is the reason, M&M Customer care is really worth mentioning compared to the competitors.
I had a small experience of this customer care recently when I had been to the A.S.C for showing a rusted front bumper bracket. The guy I was dealing with took the vehicle to the bay and was taking photos of the bracket when I made him notice small boils that had developed on the headlight glass. He showed it to the warranty claims guy and he himself initiated a work order and gave me both the headlights replaced then and there under warranty in an hours time. I was so taken aback by this gesture. Now that's called after sales service and customer care.

Regards,
Rahul K

[shashanka]

Originally Posted by debuda

To the best of my knowledge, the XUV engine has 16 valves, i.e., 4 valves per cylinder. These 16 valves are actuated by two overhead camshafts. These two camshafts are driven by the crankshaft through a chain drive.

I'm not able to understand what you meant by 'hydraulic clamps'. AFAIK, no hydraulics are involved in the valve actuation. The cams force the valves open or shut purely mechanically.

Every valve is spring-loaded and the natural position of each valve is closed. Only when the valve stem is pushed down against the spring force, it opens. The spring is attached to every valve stem with the help of a retaining collar and this collar is locked in place by a pair of collets or locks.

Attachment 1207748



Is it the case that some of these collets have given way? If that happens, then the affected valve will lose its spring force and will fall into the cylinder by gravity. It is then likely to foul with the piston and get damaged.

Hello Debuda,

I believe you've hit the nail spot on. The jargon used by the service staff is misleading to say the least. The collets falling out is not unusual, but its usually an issue of wear & tear due to huge running hours, where the collets fall through the retaining ring. I have seen this happening on marine diesels where parts have not been replaced when due. But to have it happen on a new vehicle is extraordinary to say the least. I have been using the Scorpio for the past many years, travelling all over the country, and have praised it to all and sundry because of its total reliability. But to hear of an instance like this one, is certainly cause for concern about M&M's product reliability.

[gopa99]

Originally Posted by SS-Traveller

True. One cam operates the inlet valves, the other operates the exhaust valves.
Hope this explains things in a simple manner.

Nice inputs SS, is there any news of the oil condition? My initial angle on this would be: if the failure was related to the oil pump, then the oil condition in sump would be near to its original condition. How ever, the dash board would have relayed the oil pressure warning lamp, right?
If the oil itself was say - contaminated or adulterated or not filled to the mark, then oil analysis would show it as "deteriorated". doing a simple oil analysis would indicate contamination. Here it would be a gradual deterioration as all of a sudden, a contaminated/ off spec oil wont stall the engine soon after it is filled.

So may be an oil analysis is worth the effort, my two cents.

[SS-Traveller]

Originally Posted by gopa99

So may be an oil analysis is worth the effort, my two cents.

Seeing that you are involved in lubrication research, would you have any list of UOA labs in this country who would perform UOA for individuals on a small-scale basis?

I understand Shell has a UOA lab at Jamshedpur on the Tata Motors premises, which is off-limits for non-company personnel.