RANGE ROVER L405 RESTRICTED PERFORMANCE FIX / S4-Ep52

Our new to us 2015 Range Rover L405 with 4.4L TDV8 has a restricted performance issue. That reduced the purchase price quite a bit for us but are we able to fix this problem easily with a tyrap and a piece of wire? Hope you enjoy the video.
We are not liable for any harm you do to your car, your engine, your surroundings or yourself. Use the information given in this video at your own risk.
Thanks for watching,
Vera & Christian
Become a patreon
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Source for good L405 and L322 Info
www.fullfatrr.com

[@anthonywilson4873]

Best diagnostics comes from understanding the system. Well done.

[@callegarisam1980]

Suspect the dirty air ducts (also known as the queen Mary ducts) between hood and intake are getting blocked, likely that black nvh material you had noted in the first video during test drive. Love your videos, and great you now have a L405.

[@Vera_and_Christian]

Holy cow. You got it. Please do watch the next video so! Christian

[@callegarisam1980]

Ha ha, when I watched the test drive video I did think that it was odd hanging loose like that, slightly at an advantage in that I am JLR SVO and my role is mainly around problem solving power train issues. Have been watching LR tine for a while and will continue to do so, I find them entertaining and educational.

[@callegarisam1980]

Happy new year to you and your family

[@BigDave1965]

Another fantastic Video, I think you should get a job at the JLR training centre

[@rhkavli]

What puzzles me is the second diagnostics message (the one at the top) stating Air Flow Too High. That is quite misleading with an airflow restriction. Is that an artifact of a vacuum buildup in the inlet?

[@suryaprihadi2258]

This is the only automotive channel , single car brand, which i do not own the car nor a brand i like.... but i love the 2 awesome hosts❤. I really enjoy this channel🎉. Thanks Chris n Vera

[@Andrewpc2023]

Sheer class, Christian and Vera, this episode has it all. Suspense, drama but the ‘Queen’ didn’t bargain on the CV tenacity!! Bravo you guys.😵‍💫😵‍💫

[@eoghanfla6343]

Guys I’m so glad ye bought this car, even though I’m not at L405 stage yet I’ve gone from my 06 disco 3 to a 12 L322 with the same engine so I’ll be watching all these videos with interest. Christian joined fullfatrr the same week I did so I think we purchased on a similar date. I’m 4 weeks into all the same jobs so it’s nice to know I’m not alone 😀.

[@slypig24]

Now we all have to wait a whole year until 2024 to see the fix. Happy new year from Melbourne Australia 🇦🇺 🦘

[@Vera_and_Christian]

Lol.

[@justjoe7313]

Love you guys, you are making very interesting content with great humour and very positive attitude! All the best in 2024!

[@bartgugelot5788]

I love this channel, and I would love to have a Range Rover. But this channel confirms its not for people without a workshop, patience or enough money not to care… all the best for 2024

[@BlenderBends]

Please do a mid-week video. Its summer holiday here in Australia and we need more content like this before we all go back to work. :) 😁

[@alanadair2367]

Happy new year to Christian and Vera also all LR time viewers

[@michaeldallimore8590]

Alles Gute zum neuen Jahr Vera and Christian. Many thanks for all the informative and entertaining videos during 2023. I am looking forward to many more in 2024.

[@Himoutdoors]

When my children are older, I’m definitely going to get myself a Range Rover and fix it myself. Just don’t have the time at the moment, and not paying a dealership or even an independent to do it. If Christian and Vera can do it, so can you! Inspirational stuff!

[@Mike_221]

You guys are the best JLR channel on youtube! Also I'm from Australia 😜

[@jagadishraob1332]

Happy new year to all LR time family

[@be4tnl]

i'm so happy to drive a toyota and not have al those problems..😇 thanks for the entertainmaint this year, it has been enjoyable to watch. best wishes and a happy newyear

[@cpscps2679]

I have determined that Christian secretly works for Toyota. I base this on 1) for someone who knows nothing about Toyota, he knows a lot about Toyota; and 2) these videos, enjoyable as they are, sell a hell of a lot of Toyotas ! Vera: "Oh my God !"

[@CaptChaos1964]

Happy new year to you all, absolutely brilliant video as always! I’m an owner of a 2011 L322, so I’m taking particular interest in the new videos, wouldn’t change it for anything, well, at least until it’s used up all of my savings 😂

[@matthewhaddon599]

I had an issue with restricted performance on a Freelander 2.2d and the fault codes pointed to turbo issues, but it was actually glow plugs that caused the problem, so it's not always easy to diagnose these type of faults.

[@ianwheat1577]

Some problems lead you down the wrong path coz you think it's something more serious but in the end something simple.every day is a learning day . we all have them . hope you had a good Christmas with lots of presents .and a good new year .

[@Vera_and_Christian]

You bet. I made a science project out of nothing. But so did LR.

[@Snickers4211]

I can barely toast bread without burning it, so I envy your patience and skill. Love your videos 😊

[@admranger]

Just found your channel. I love the content and especially, the sarcasm. As someone that would like to own an L405 in the future (maybe a sport instead, but the mechanicals should be the same), I'm very interested in the content. Seeing the driving videos makes me want to visit Germany again. I have been there for three BMW euro delivery trips plus a few work trips so I've spent a bit of time there.

[@richardharker2775]

I love a simply overlooked issue that drives you nuts. However my future self has seen a complete teardown and rebuild along with a vehicle being sold... All the best to you Christian and Vera. Love your videos.

[@peternash6206]

I knew A Range Rover based series would be brilliant - Thank you and Happy New Year.

[@vido4x4]

Christian is the type of guy that will take apart a no start engine before checking if there’s fuel in the tank. I owned a L322 RR that had the same problem. Sold it before I got to the bottom of it. RR’s are incredibly more sensitive and complex-that’s why I went back to a Discovery 4 (LR4 here in the U.S.) Your videos are part of my Sunday morning routine. Keep up the good work and Happy New Year!

[@RRL551Dynamic]

I think Christian knew what the problem was before he'd left McD's, "Burning a 100 litres in test drives" was for me the real reason for the prolonged diagnosis, it sounded like alot of fun, Happy New Year to you both and look forward to more of your LR shenanigans.

[@MarkSpohr]

Glad to see that your new RR is starting to fail already to keep you busy.

[@benjones1180]

How have I only just found your channel 😮, addicted already . This what I love about Germans such technically intuitive people unlinke my fellow brits that built that thing in the first place 😂

[@Discoworx]

Happy New year's to the LR community.

[@OldYorkie-mi4ki]

A little tip re the broken studs, Iv'e been doing this for over fifty years. Weld a heavy section washer (they are called form C) on to the stud first. This is easier as you dont have to reach in so far to weld. Then weld a nut to the washer, get a washer a little bigger in diameter than the nut then weld the outer edge of the nut to the washer. You can weld the inside of the nut as well to be belt and braces. Then let the nut cool until you can almost touch it before burning your fingers. At this temp give it plenty wd40 or similar. Let it cool right down dont rush it, have patience, Give it more juice then attempt to screw it out, if it starts to resist carefully screw back in again with more juice. If it only moves a bit dont be tempted to keep going screw it back in. Keep this up until it comes out. If it breaks off start again. Take your time dont rush it use plenty of patience. Happy new year, John.

[@Vera_and_Christian]

That sounds like a good solution. I never tried the welding method. Will follow your advice next time. Thanks. Christian

[@comedefleurieu315]

So glad you have bought a l405, I'm considering it. I have currently the l320 sdv6!

[@charliegould5865]

Excellent job drilling that broken bolt out, I like the idea of the adjacent bolt to act as a drilling guide. I know you’re probably way ahead of me now, and I’m not trying to be a desktop mechanic, but have you considered using left hand fluted drills (anti-clockwise rotation) for drilling out bolts. I have a selection of smaller sized left hand flute drills, and I’ve on a couple of occasions had the drill bite into a bolt and unscrew it as I drilled into it. I know it may not have worked on that steel bolt in alloy if it had partially corroded in. But with the left hand drills at least any rotational force is in the correct direction if it bites. They are available on Amazon and other places.

[@gezdipz5425]

All those people with the same problem are waiting with baited breath lol,congrats on the fix and happy new year to you from South Wales. Keep up the great content 👌

[@robertkirk4387]

I have Just discovered your channel and I am enjoying it greatly, it reminds me of when I was stationed in Germany many years ago in your wonderful country. I loved all the people the food and of course the beer, good luck with your new project.

[@Vera_and_Christian]

Thanks. Please check our videos every Sunday. Christian

[@stephendawson9947]

Happy new year to the Muth family, I'm looking forward to another great year of Land rover content. However I can not believe you are making us wait for the fault. have a great evening guys.

[@LowreyContractorsUK]

Best wishes to you both. Thank you for all your advise. Best wishes from 🇬🇧🇬🇧🇬🇧🇬🇧

[@danasprey4144]

Brilliant carrot dangling, I now have to wait for the next video ❤

[@rittonhlt2924]

Une très bonne année à vous et votre 🎉petite famille et longue vie a nos discovery 😅😊😂🎉

[@Motorcyclefan17]

My two favorites KZbinrs!

[@Vera_and_Christian]

😊🙏🙋‍♀️

[@Mr_Springy]

Have a great new year both and thank you for the content and entertainment 👍🏻 🇬🇧

[@Vera_and_Christian]

You are welcome.

[@leejordanful]

I can't believe you made us wait another week 😂 It is a holiday here in the UK tomorrow so how about an extra video just for us! Buying the Range Rover is a great move. Happy New Year to everyone!

[@paulelliott1595]

Happy new year guys. I can’t believe you left us hanging.

[@user-ez3jw1xk7n]

Hey, thanks for your content and the detailed explanations - there are not many people on youtube that dive so deeply into these topics! Much, much respect! Furthermore: I am very happy to see a L405! You now have my complete attention!

[@kwinterburn]

If the vacuum comes from the air pressure drop across the air filter then a missing filter will stop it working , or a low drop air filter will also stop it working , it a blockage in the pipe or a lak in the vacuum pipe OR a crack in the air box slowing air in on the wrong side of the filter

[@dipladonic]

"at the end of the day, it's all the same"...we love you Vera, but it's not. Without Christian this stuff would be impossible and certainly not the same as a Discovery. The RR V8 is a whole different can of worms. Good luck! I like the way that you ended the video. Very unusual and a great way to monetise Christian's fault-finding efforts. The next video's findings will be worth the watch.

[@Vera_and_Christian]

Of course that only goes for the qualified DIY mechanic. 😅👍But there are more of those than you would think. 👌🙋‍♀️

[@crt269]

Another great episode. I just love your engineering mindset and methodology. Greetings from Australia, and I don’t own a Toyota either……

[@Anorakmarc]

Hi. A quick guess that the air duct in the bonnet was getting blocked by the sound insulation material !!!

[@Vera_and_Christian]

Holy crap. You are the second one who knows about this. Please still check back next week to see my science project approach. Christian

[@Anorakmarc]

@Vera_and_Christian I have been a Landrover Specialist garage for over 30 years here in the UK and I find huge value in watching your channel....... Oh and for good reason... My wife drives a Toyota !!! Keep up the good work.

[@viewfromafar475]

Happy New Year to you and birthday wishes to Vera. My son gave me LR Time patches and decals for X-mas, which was delightfully unexpected and appreciated. You two are a weekly delight. You are diligent, joyous, energetic, indefatigable and witty and also wonderful supportive parents. There is so much to admire. Thank you so much. LR4V8 and Evoque now upgraded with decals.

[@Vera_and_Christian]

Happy New Year 😃🙏🙋‍♀️

[@byronlovesey1290]

Happy new year guys . Well done for finding the fault , I’ll be looking for a cheap Range Rover with a turbo fault now

[@johnwillett4086]

PF-2024 Vera & Christian. Interesting video and looking forward to the next one and finding out what the problem really was. 👍🥂

[@Vera_and_Christian]

Thanks.

[@timdaff]

Hope you all have a happy NYE. Looking forward to watching this sober. Much love from AU.

[@gazzafloss]

Well I'd have been surprised if you hadn't sorted it Christian.

[@Oliver_996]

Der Range ist ja wirklich eine Content-Maschine par excellence! 😂 Guten Rutsch und alles Gute für 2024! 🥂

[@Brayco864]

Congratulations on some great detective / engineering work towards fixing your L405´s elusive problem ……Happy New Year 😊

[@2nickles647]

You a newer Land Rover breaking down already. 😅 Thats normal for Discoverys. I should know i own a Disco 2. I received it as a gift from my sister. It was a single owner truck. The drive train was never serviced. Typical of people who just drive and dont even check the oil. When i received it. Original key was lost. But a locksmith had made a temporary key. I spent about 1 year doing the basic maintenance. New brakes. New rotors all the way around. New front wheel bearing assembly. Removed both pumpkins or crown and ring assembly units. Cleaning the inside out. Rear had flooded with water. No mater. Cleaning.. cleaning. Then i got my registration done. New plates and new insurance. Drove it. Noticed i was losing coolant. But no drips?? But as the engine warms up. I can smell burnt coolant?? Then discoverd to the disco 2 had blown head gasket. I ordered the update hesd gaskets from a land Rover parts place. I bought all of the stuff i needed. Plus a new water pump and hoses. I took some time off and replaced the head gaskets and also did a tune up while i had the room. To this day..310k miles. Last month my wife noticed coolant tracks on the Parking spot. Now i have a weeping radiator. Its my spring or summer project. I hope my local radiator shop can fix it. Keeping my toes crossed.

[@Vera_and_Christian]

Check out our previous video on our new L405. We bought it in limp mode on purpose. Actually, we were looking for one with an engine failure, but none available. 😃👍🙋‍♀️

[@mauritztoivonen1070]

Thank you and i hope you all will have a good new year.

[@RussellTarr]

Great channel! Thank you very much! My guess is that the "unexpected" operation is the root of the problem. This means that the actuator is opening when it should not or visa versa. You have proved the operation so the problem is coming from the solenoid valve. This can either be electrical or mechanically driven. It's a simple coil to to me it should not actuate correctly once and then different next time. This suggests it's either and unexpected electrical pulse telling it to operate or the little valve is passing vacuum when it should not. If you say you could have fixed it on the way to the big M then it's probably a leak on the vacuum circuit and not a loose electrical connection on the solenoid. Can't wait for next year. Happy new year.

[@johnnyknap]

Another cliff hangar situation to survive for a week. Just relaxed after the non starting Discovery rebuild. So the engine is already better than when it left the factory after Christian precision fettling. Very well! Happy New Year!

[@popsyann]

Very knowledgeable people! Love it.❤

[@colinfield97]

Bed time has never been so much pleasure since I discovered your videos 😂 Looking forward to the next episode of broken bog rocket. Happy New Year

[@markatchison9974]

Faulty sensor? A tip. If your TDV8 goes into "restricted performance" mode, pull over, turn off the engine, get out of the car, lock it, then unlock it & get back in. 9 times out of 10, you will be back to full power........ for a while.

[@harveysmith100]

Another great video for a Toyota owner who knows nothing about Land Rovers. Your methods of diagnostics are a good lesson. Santa just bought me the Gedore Red socket set that you use. I have wanted one for years, even before seeing it used on your channel. I have plenty of sockets but I thought it would be a good set to keep in the back of the Land Cruiser. (Just to look pretty, we never fix anything on Land Cruisers.) It is the cheaper Gedore range made in Taiwan, but is is so bloody German. Sockets are sockets but this set contains every bit you could think of, Ribe, triple square, 5 point Tx for the VW/Audi's, Tx up to T70, who uses T70? But if I need one it is there. Love the channel, thanks for all your effort.

[@Vera_and_Christian]

👍👌But I have had the 1/4 inch pivotal extension fail on me. It loosened to much. And also the 15mm 1/2 socket tore the first time we used it. I got both replaced under warranty and I did not had to send the entire set in. Also make sure to check your car for nuts and bolts not covered in that set. Land Rover Discoverys have, for example, two 12point bolts installed, one in the brake calibers, and the other somewhere in the suspension. We carry those in addition to that set. Happy New Year🙋‍♀️

[@harveysmith100]

@@Vera_and_Christian Good advice, thanks for all the hard work in your videos. I learn every week.

[@janbauwmans7662]

Happy New Year and thanks for another great video !

[@alanhowatson3462]

What a cliff hanger, can't wait until next week. Thank you for your vlog and Happy New year 🥂

[@philhealey4443]

Happy New Year and looking forward to more Above and Beyond antics for 2024. I don't know if HRH is new enough to be an 'open house' model, apparently freely accessible to lowlife armed with an antenna, some wire and a transmitter to detect and relay your key's wireless signal to open doors, start and drive it away, but investigating and maybe confirming that keeping your keys in a biscuit tin Faraday cage might be interesting and valuable for long-suffering owners.

[@lukakosir235]

Happy new year and love seeing this channel evolving again!

[@simon-mouse8739]

I thoroughly enjoyed watching this video and it made me smile throughout it. So, was it the small hose on the main air box you looked for when you highlighted that often people introduce secondary faults when trying to fix the primary one? Was it off before and then you put it back on ......? Find out next year no doubt 😁👍hope you have a great new year

[@Vera_and_Christian]

Everything was correct. Fault was not caused by the workshop. Christian

[@simon-mouse8739]

​@@Vera_and_Christianso I watched the test drive again and now I see it 😂

[@Soulvex]

Thanks for saving my morning.

[@hazelltree]

Happy 2024 to you Christian and Vera, And happy birthday Vera "Coffee time" . Enjoying the Range Rover videos

[@pellfan]

Happy New Year!🎊 As earlier RR owner I enjoy your work 👍 Strive on!

[@lifelong5425]

Great video with much ado about..something...Happy New year...

[@johnwilkinson4782]

Great video and with a cliff hanger😮 Happy new year 🎉

[@ProducerCliff]

Happy new year Christian and Vera! I love you guys! looking forward to more non-toyota fixes in 2024...!

[@Richie-C]

Have a great 2024 and keep up the super work

[@julianholley2358]

Just stumbled across this channel and I don't even have a Land/Range Rover. Very entertaining. Looking forward to more videos in 24. Happy New Year.

[@Vera_and_Christian]

Thanks. No need to get a Land Rover. Christian

[@TheGrimReaper1]

@@Vera_and_Christian even though i only have a V70 i enjoy the repartee, in fact there are times when i wish the ‘ 66 match would have gone to penalties, you are both so nice. All the best from England. Ps , when are you off logging again?

[@paulgerard5413]

Always great to see your videos, a highlight of the week. Happy New Year Christian and Vera and all the best for 2024. Thanks for the laughs and entertainment.

[@davidthomas9267]

I can't wait for Land Rover to build space vehicles, then we will really have out of this world repairs to watch!!

[@squareyesj7170]

You will get the clicks regardless, I watch your videos and I do not own any JLR cars, nor Toyota either. I have no intention to fix any car but I tune in from my bed every week because I enjoy your videos. Many thanks for those, keep them coming. Wishing you all a happy new year. Click, click. Like and subscribe...

[@Vera_and_Christian]

Thanks 👍

[@peregrinemccauley5010]

G'day cobber. This episode was a fair dinkum ripper. Look forward to part two. Broom broom.

[@Vera_and_Christian]

It is already out. Check our channel for the latest upload👍🙋‍♀️

[@peregrinemccauley5010]

@@Vera_and_Christian Righto.

[@bobrose7900]

What a debacle! So the air box was to blame? OMG! What a great video you two, really enjoyable and what would us pie and chips arm chair mechanics do without you Christian! You should be working for JLRs' technical team, I think you know more than them! AND Happy New Year to you both and I look forward to many more Sunday debacles!

[@martiniv8924]

It’s like a Charlie Chan mystery 😮 🧐 OMG ! Edit Happy new year 👍🏻

[@jonathanbiggar4973]

Great work , it’s a car that keeps giving ( great content) . Those bolts are nice and Tight. Thanks for sharing looking forward to next week

[@redtim3690]

Great video. Happy New Year and look forward to the content in 2024.

[@freemind9734]

Guten Rutsch ins neue Jahr.

[@richardhartley7094]

Happy new year to you both👍

[@bautiramada]

Hey beautiful couple! Happy new year to you all! What an amazing idea to buy a RR 🤩🤩🤩😂😂😂. Love your videos! Keep them coming pls 😜😜🏋🏻🏋🏻 Cheers! 🍻🍻

[@gustavosimoes4509]

Happy New Year, ... with a new Toyota 😊

[@discovery-on-the-island1079]

Happy new year Christian and Vera 🤗

[@jameskihiu4746]

you guys are awesome,cant wait for the next video

[@richardhartley7094]

My pet hate is drilling out broken bolts sometimes it go’s ok other times it’s a work out 👍

[@Vera_and_Christian]

It was serious work. Needed a vacation day next. Christian

[@vincentcorreia5714]

Well watching this debacle, my urge to get a RR is rapidly evaporating... I will continue driving my D3 with 431k KM...

[@Vincent-dc6ku]

Frohes Neues Jahr

[@AW-Services]

Happy New Year, Christian Vera & family

[@adelal-rawashdeh1050]

Happy New Year Christian & Vera Hope See You In New Year Happy Healthy All The Time .

[@adventurouscampers]

Great Diagnostic!!😂😊

[@jamesjrd250]

Love the vids and great you have a range rover if you want you can fix my disco 2 will have 2 years of content for your channel then I can drink coffee all weekend like a Toyota owner respect and happy new year to you and your family

[@nycxed521]

If i had you as my teacher, i would've stayed in school... 😔

[@darrencoyle3290]

Happy New Year Christian and Vera , another educational video many thanks for the information and humor.

[@lynstoneham]

Been waiting for this video really interesting I now sod all about vehicles

[@robintaylor6159]

Have a fantastic New Year from the UK to you 🎉

[@hubertthibaut]

Happy New Year to both of you. I wish you the best for 2024