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Engine out is the first step for the dealer for a bunch of jobs I've done on the Phaeton without removing the engine. Oil cooler pipe was the worst one, I had to lift the engine a couple of inches for that one. I have no idea why dealers love removing engines, other than they get to charge more for the job.
The dealers follow the manufacturer's official procedure.

I used to own a Fiat Coupé 20VT+. The Fiat dealer cam belt change required engine removal. A specialist garage developed a way to do it by (IIRC) removing an engine mount, saving a lot of labour. Fiat later adopted this as their official procedure.
 

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The dealers follow the manufacturer's official procedure.

I used to own a Fiat Coupé 20VT+. The Fiat dealer cam belt change required engine removal. A specialist garage developed a way to do it by (IIRC) removing an engine mount, saving a lot of labour. Fiat later adopted this as their official procedure.
Nice car, how was it to own?
 

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Nice car, how was it to own?
Good - I bought it new in 2000 (one of the last), and kept it just over 7 years (when I moved to the US). The worst issue was when the ignition barrel failed, so I had to replace all the locks. I modified it to an estimated 350hp (larger turbo, new intake, larger cat and exhaust, front-mount intercooler, chip) so went through front tyres in 5.5-6k miles. I switched to a specialist for servicing, which kept the cost down, and the quality up!

It would be too fast for me in the UK today. I can't imagine keeping my license there with a McLaren.
 

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Good - I bought it new in 2000 (one of the last), and kept it just over 7 years (when I moved to the US). The worst issue was when the ignition barrel failed, so I had to replace all the locks. I modified it to an estimated 350hp (larger turbo, new intake, larger cat and exhaust, front-mount intercooler, chip) so went through front tyres in 5.5-6k miles. I switched to a specialist for servicing, which kept the cost down, and the quality up!

It would be too fast for me in the UK today. I can't imagine keeping my license there with a McLaren.
LOL. Right. I remember now, the front wheel drive was what put me off buying one. Always liked the way it looked though.
 

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dealers love taking enginers out, more $$ and longer job. My wife's cayenne had an oil leak at the turbo, they took out the engine and trans and Porsche paid them under the CPO warranty.. I think it was like $14k retail. insane..
 

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Discussion Starter · #28 ·
So the oil tank has been swapped. It can most certainly be done without a lift and without removing the engine. It baffles me that McLaren would actually remove the engine for this. It took me 4hrs total. It helped I already had the passenger side radiator removed. It would be extremely difficult to do without that removed.
Cliff note version:
1.) Put the car on Jack stands, remove under trays.
2.)disconnect fuel feed line, disconnect fuel filler line, undo tank straps.
3.) lower fuel tank slightly to get to the wiring harness, filler line on the tank side, vacuum lines, and ground wire on the tank. There is a vacuum line directly on top of the tank that I broke . Luckily it’s a universal part that is used on the E92 M3’s.
4.) lower fuel tank and move it out of the way.
5.) Now undo the feed line, return line, oil tank fill line, PCV line and vacuum line from the oil tank.
6.) undo all of the mounts from the tank, 4 total. Remove the mounts from the frame of the car for more clearance.
7.) undo the wiring harness on the tank. This is the reason the radiator coming out is much easier. Since it’s right behind the radiator.
8.) Now you will have some wiggle room. Take off the intake hose on the cold side of the Turbo. Remove the mounting point for the passenger side fuel tank strap. Remove the foam in the fuel tank area right next to the oil tank.
9.) Now with everything out of the way you can wiggle/ turn the tank and it actually comes out pretty easy.
 

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Discussion Starter · #30 · (Edited)
good to have accurate info and feedback from someone that has done it. Exactly what this forum lacks.....
I was really surprised there was no write up on removing the fuel tank or oil tank. I pity anyone with an MP4 that has paid $3000 from the dealer for the updated tank and the cost to remove the engine to install it. Since I couldn’t even imagine that labor bill. 30hrs, 40hrs? So maybe a $10,000 repair.
 

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I was really surprised there was no write on removing the fuel tank or oil tank. I pity anyone with an MP4 that has paid $3000 from the dealer for the updated tank and the cost to remove the engine to install it. Since I couldn’t even imagine that labor bill. 30hrs, 40hrs? So maybe a $10,000 repair.
Yep at least! Motor vehicle Font Automotive lighting Terrestrial plant Vehicle
 
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