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I had taken my new (500 miles) DS in about 3 weeks ago because the check engine light had come on and stayed on for about a week. The service advisor came in and said that it was not on when she pulled it in to the service bay, even though it was on when I parked about 5 min earlier. She said they would check it out anyway, so off I went in my XF loaner.
She called later that day to tell me there was an "exhaust leak" that they had fixed, but they needed to keep it overnight to make sure it was fixed. Not a problem, picked it up, light was off, and away I went.
About a week after that, on my way to Whistler for a ski weekend with a couple buddies, the light came on again about 10 miles into the trip. Holiday weekend and all, couldn't get hold of the service dept to make another appointment, so I called when I got back. Advisor said that JLR is aware of "an issue causing the check engine light to come on repeatedly." She then said that there is no fix available at this time, but she would contact me with any update and that I should just ignore the light if the DS "is running fine."
I'm mostly worried because I thought the car was "running fine" the last time the light came on, and there was an exhaust leak that needed to be repaired. Has anybody else heard of this issue? Thanks!
 

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It could be something as simple as a failing sensor or something that causes it to fail, but as long as the vehicle is in a running condition that will get you to and from where you need to go, you're in the clear.

You can always try taking it to another JLR dealer for a second opinion if that's what you might want.
 

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Could be a number of emissions related issue, most of them not major. Exhaust leak would cause one, O2 sensor failure would cause another as the car thinks you're over polluting, another would be the thermostat sticking and the car realizes it takes too long to get up to operating temp, or its too cold and the engine is running too rich because the engine is taking too long to get up to temp. British car problems, i never knew there were emission related issues with cars until I started owning british cars.
 

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I was in the Tahoe over the New Year's weekend and my check engine light also came on. My DS had approximately 1,200 miles on it. The warning lamp stayed on for 4 or 5 days and then went off by itself. I could not get an appointment for service until this week and since the lamp went off I lost interest in pursuing it further for now. The car continued to run fine.

It was bitterly cold around Tahoe last week when this occurred with temperatures averaging around 10 degrees F. I can't help but wonder if the low temps had something to do with it.
 

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I have a 2016 Disco HSE ... I've had my check engine light come on twice. Both on my way back from weekends in Tahoe. First time it was O2 sensor, misfire on cylinder, running lean. The car went into limp mode and wouldn't push over 2k RPMs. This was at 2,200 miles approx.

Second time, misfire on three of four cylinders, running rich and O2 sensor. Car didn't go into limp mode this time but was sluggish on accelerator. This was at 3,300 miles approx.

They are figuring it out, fingers crossed nothing major, although I have the privilege of driving an XKR for the next days.
 

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I took mine in this morning for the check engine light. The service guys were guessing it was an O2 sensor issue without even looking at the car, LOL.

Guess it is a known issue.
 

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We just got back, yesterday, from a ski trip to Purgatory (Durango CO) The DS ran great the whole time but the engine light came on as we were leaving the cabin, still at higher elevation, to come home. We were there for 4.5 days. It got down into the teens and low twenties while we were there. It was around 20 degrees when we left out in the wee hours of the morning. On the way home the DS ran fine, maybe a little sluggish, but it definately never went into a limp/low power mode.

The light is still on and I have it booked for service tomorrow morning. To me, it seems like I'm smelling some pretty rich exhaust right now. It permeates the garage just when you start it up and leave or when you pull it in.

It'll be interesting to see what's up. Our DS is a 2015 Model with over 8K on it but it seems like we have a theme going here. (Higher elevations, low temps)??

Anyone checked TOPIX?
 

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I took mine in this morning for the check engine light. The service guys were guessing it was an O2 sensor issue without even looking at the car, LOL.

Guess it is a known issue.
We were told by the dealership that our check engine light came on due to a misfire in all four cylinders at the same time.

They then asked if we were sure we were using premium fuel - we have been keeping our receipts ever since just in case LS acts stupid on future warranty claims.

It does seem like there are some fueling issues.
 

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Engine Check Light

I have a Land Rover Discovery HSE 2016 (bought in Nov 2015); got about 2K on it.
Engine light came on after a trip to Tahoe; stayed on for a couple of days and went off. I was told it must have been Gas Cap.
It is now few weeks later and now the Engine light has come on again and has stayed on for a week now.
Dealer is super busy so they have scheduled me for 2 weeks from now. I assume I am covered under warranty no matter what it is.

I read through the thread and looks like there most are having similar issues. I see the similar Theme, Cold weather then Engine light on...hhhmmm...
I did a search and sure enough the Engine light is related to polution.

I am going to look for diagnostic tools, I know several are available and see if I can troubleshoot this myself, none the less I will keep my appointment; and will update once I discover what the problem was

No Conceivable issue with the Engine... Power seems good and I have been using Premium Gas all the time.
 

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We were told by the dealership that our check engine light came on due to a misfire in all four cylinders at the same time.

They then asked if we were sure we were using premium fuel - we have been keeping our receipts ever since just in case LS acts stupid on future warranty claims.

It does seem like there are some fueling issues.
Well this also happened after my last refill. I am super confident that I put what was labeled 91 octane. Whether it was or not, I have no idea. When you travel and fill up a several different stations, you just really never know what you are going to get sometimes. But I'm not saving any receipts, that's just ridiculous to have to do IMHO.
 

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Several of us in this thread - myself included - have reported the check engine light kicking on while driving in cold, high-altitude environments. There are several reasons why the warning lamp may light - some of them relate to the amount of oxygen/air that the car is sensing. For example a bad O2 sensor is a common cause just as a faulty mass air flow sensor is as well. Not being an expert, I am now less inclined to believe that the issue some of us are experiencing relates to temperature and more inclined to believe it relates to driving at higher altitudes where the oxygen content of the air is decreased.
 

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Is the fuel switch over a possible cause ?

Here in CA, we change to a winter blend with more MTBE and ethanol....
 

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Several of us in this thread - myself included - have reported the check engine light kicking on while driving in cold, high-altitude environments. There are several reasons why the warning lamp may light - some of them relate to the amount of oxygen/air that the car is sensing. For example a bad O2 sensor is a common cause just as a faulty mass air flow sensor is as well. Not being an expert, I am now less inclined to believe that the issue some of us are experiencing relates to temperature and more inclined to believe it relates to driving at higher altitudes where the oxygen content of the air is decreased.
Good point on the altitudes. I am in Calgary where we are situated at 1000m, 3500 feet above see level.
 

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I have a Land Rover Discovery HSE 2016 (bought in Nov 2015); got about 2K on it.
Engine light came on after a trip to Tahoe; stayed on for a couple of days and went off. I was told it must have been Gas Cap.
It is now few weeks later and now the Engine light has come on again and has stayed on for a week now.
Dealer is super busy so they have scheduled me for 2 weeks from now. I assume I am covered under warranty no matter what it is.

I read through the thread and looks like there most are having similar issues. I see the similar Theme, Cold weather then Engine light on...hhhmmm...
I did a search and sure enough the Engine light is related to polution.

I am going to look for diagnostic tools, I know several are available and see if I can troubleshoot this myself, none the less I will keep my appointment; and will update once I discover what the problem was

No Conceivable issue with the Engine... Power seems good and I have been using Premium Gas all the time.
Just an update,
My engine Light automagically turned off after being on for almost 10 days.... It may still come back on, but I am crossing my fingers. I will report back if I can get anything from the Dealer. Wish we could contact Factory engineers directly. I feel Landcover should have a call center where some of these questions can be answered.
I have found out that I can get a OBD2 connector that I can use to hook up to monitor sensors and more... Will post again once I have got one...
 

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I thought it was kind of funny that the light came on right after my first tank full of Colorado fuel. But here's what I got back from the dealership after picking it up on Friday.

Check engine light is on: No faults present. (Whatever that means?)
LR 044010 Manifold - Fuel
Found fault with the fuel manifold/feeder pipe assembly. Replaced to correct, cleared adaptions and codes.

Seems as though I was correct about it smelling like it was running rich. They commented that it's running as designed now.

Engine light is now off of course...knock wood.

While it was in, I had them do the InControl App update.

As for fuel, it's back to good ol Oklahoma 100% gasoline...91 octane. No more Ethanol...at least until our next trip. LOL!
 

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Faulty sensor

For me the engine light went on with 539 miles. It was on the California coast, so no influence by altitude or cold. It was towed to the dealership and it took them a few days to get a solution from the manufacturer. They told me that the sensor detected an emissions leak but they tested that and it was not the case; just a faulty sensor on this computer-on-wheels.
 

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For me the engine light went on with 539 miles. It was on the California coast, so no influence by altitude or cold. It was towed to the dealership and it took them a few days to get a solution from the manufacturer. They told me that the sensor detected an emissions leak but they tested that and it was not the case; just a faulty sensor on this computer-on-wheels.
Why did you have it towed in? Did it go into limp mode?
 

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It happened to me once and dealer said the same thing: misfire on cylinders (when car has only 500 miles). They recommended not only to fuel with premium gas but also at the branded gas station such as Chevron, Exxon...etc. (My last fill was done at chevron with premium gas!!!) Fortunately, it currently has 3000 miles. No engine lights on since. (Knock on wood)

Their explanation is just not making any sense. To me, they probably don't know root cause.
 
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