We own a 2018 Land Rover Discovery HSE Lux TD6. About 8 months ago it started chugging and then the engine quit while driving on the freeway. It would then crank but would not start. No dash warning lights lit up, the engine just quit engining. The vehicle has 51,700 miles on the odometer - just outside of factory warranty.

The dealer we took it to said there was a bad battery and a low fuel pressure code in the system, they replaced the battery and low-pressure pump, confident that would fix the issue. The car still did not start. About $800 bill.
Next we were told the low-pressure pump starved the high-pressure pump and that failed. The extended warranty does not cover consequential damages but agreed to cover the cost of the parts. The pump was confidently replaced. The car still does not start - now we are in about $3,100 with a car that still does not start.
Now they are saying the injector lines are clogged due to "shrapnel" from the high-pressure pump and all the lines and injectors need to be replaced and it will cost $13,800 that we have to pay since it is consequential damage. By the time we are done this will put the bill closer to $20K than it is to $15K....

Does this sound legitimate? I have asked if they pulled the screen in the High-Pressure pump to see if there were metal pieces, but they are unable to respond with anything other than the Land Rover Engineers are saying this is what it has to be and are again very "confident". Of course they are not the one's putting up the risk.

This vehicle has been in the shop for one thing or another for 23.3% of the time we have owned it (yes I started tracking it), with the latest stint running 177 days. We are at wits end....does anyone have any suggestions or alternatives to basically mechanically totaling this car?

I am located in SE Michigan.

 

yikes, that reads like a nightmare. I'm sorry to hear OP.
Any chance you're able to get a second opinion, from a trusted/local independent LR mechanic?
Share your location if you can.

 

Have they checked the fuel pump belt?

 

They have replaced both the low-pressure fuel pump and the high-pressure fuel pumps, which I am sure includes the fuel pump belt. Though I wonder if the timing of the pump is off after they changed it....I will ask.

 

Post that story in the Disco FB group. Maybe LR will see it, or at least more members there who are mechanics who might know. My first thought was clogged SCR since something similar happened to me, and all kinds of fuel and emissions related stuff was replaced under warranty. The dealer had to escalate to the factory who eventually determined that the TD6 can’t handle midwestern biodiesel so I had to find pure diesel stations from then on and they prescribed an additive, which they agreed to provide free as long as I owned the car. We traded it in for a gas version after 50k miles because we were afraid the next SCR replacement at $8k wouldn’t be under warranty. Best of luck. Sounds terrible. Get on LinkedIn and find the CEO of LR and message him. That worked for me in another situation with a different company!
We now have 110k on our 2018 HSE Si6 with only minor issues.

 

Your Disco is becoming a money pit. If I were faced with this nightmare scenario, before spending another dollar to fix an unknown problem I would talk to the Land Rover Dealer General Manager and ask what he would give for the vehicle in trade towards lease or purchase of a new Land Rover or Range Rover. You'd obviously take a huge loss, but the dealer might be willing to risk his resources to do what it takes to get it running and saleable; and you'd at least have a new Land Rover with a warranty. It's sad to say but, as with Italian vehicles, leasing is becoming the preferred acquisition mode for Land Rovers because you don't want to own a Land Rover (or an Italian vehicle) when the warranty expires.

 

What was the outcome here? I'm told my high pressure pump is making a angry noise and could fail. Sounds like it can cause some damage when it goes.

 

I had similar story on Mercedes diesel, when HP fuel pump failed at freeway speeds, what created some kind of phenomena, that melted all injector tips (I have the injectors to show).
Still $13.8k for injectors is the price taken from the sky.
Injectors can be rebuild for about $300 in US, or $100 in Europe.