Answer: Yes. So my son's 2005 Volvo V70R passed the 300K mark recently and figured it was time to celebrate, share some things about this car, and review these Rs in general (We have three in the family, the others are an 04 with 225K and an 06 with 259K). First and foremost, this car doesn't look like it has 300K miles on it. Gorgeous inside and out. Very rare color combo: Magic Blue with Atacama (basically a shade of orange) interior. Absolutely gorgeous, just a handful imported in that combo. Atacama leather was $1500 option when new, roughly half what my son paid for the car!
History: my son is second owner...coming up on 5 years of ownership. Bought with 235K miles. Check engine light was on due to PCV system hose being cracked. Previous owner took reasonably good care of it. Regular Dino oil changes at probably 5K miles or so by prior owner. Not much in the way of service records.
Mech Specs: 2.5L I5 engine, high pressure turbo, 300 hp, all wheel drive.
Seats/Interior: Amazingly comfortable, supportive, and durable. The Rs have upgraded sport bolstered seats, leather door panels, dash, sport steering wheel, console compartment. Very modern and good looking interiors for a 15 y.o. car. Very good stereo system especially with the factory subwoofer.
Brakes: Brembo aluminum calipers, big discs from the factory
Suspension: it is lowered from factory vs. regular V70 and includes electronically adjustable Ohlin/Monroe dampers. Not a big fan of electronic shocks due to high cost and limited availability. Adjustable damping from Comfort, Sport, Advanced. The damping is controlled as part of the 4-C system, which supposedly dynamically adjusts to optimize handling and is integrated into dynamic stability traction control system.
Engine: Engine runs great, smooth, good power, quiet. No oil leaks externally other than the oil cooler needing new O-rings,but that was easy fix. It is using oil which we think are the turbo seals primarily. That's the only thing that indicates it has high mileage. No smoke from the exhaust. Regular oil changes helped this engine for sure, but the conventional oil changes did not help the PCV system. PCV system was pretty sludgy but not blocked. I believe dino oil did not help the turbo seals. Typical oil changes under my son's ownership have been Pennzoil Platinum and Mobil 1 at 5K OCIs using Mahle, Champ, and Carquest/Wix filters. Been using 0W-40 lately.
Exhaust: original exhaust. Very high quality. Guessing it will go another 5+ years easily. The muffler looked like it was rusting badly, outer layer was coming off, but turns out to be just the first layer (sacrificial?)revealing a nice shiny layer beneath (same thing with the other two family V70Rs, so this is not an outlier).
Body: Fantastic. Solid. Heavy. Extremely rust resistant. The rust resistance is why i love Volvos so much. Underside is very clean and well protected from the factory. There is some rust JUST starting at some of the seams underneath, partly attributed to spending much of its early life close to the coast and NE winters. But any rust that starts on these cars progresses in slow motion. Doors are bank-vault like.
Performance: Good acceleration and handling. It wants to be a sports wagon, which it is, but it's heavy, so it is not really nimble. It's got a bit of turbo lag but pulls strong after under way. These cars at at home on the highway. It has an Aisin 5 speed automatic, and due to transmission limitations, the first two gears are torque limited to 258 lb-ft vs. full engine capability of 295 lb-ft. Brakes are fantastic with the big Brembos.
Problems: Nothing really extraordinary. The usual PCV system replacement, spring seats for the front struts, front LCA bushings, sway bar links, caliper rebuilds, and finally needed new front axles recently to replace the originals due to the boots cracking. New throttle body couple years ago. An Ignition coil went bad around ~260K....all were replaced. Still has original ball joints.
Transmission shifts nicely, but does have a hard downshift on occasion when coming to a stop. Several trans fluid D&Fs with Mobil 3309, Toyota T-IV, and now Aisin fluid has cleaned it up, helped the downshift thing, and has improved the shifting in general. I don't think the original owner ever changed the fluid. I recall the original fluid coming out of the transmission looking like brown water. Quite sure that a fluid change or two earlier in it's life would have helped. Still waiting for the transmission to explode since the fluid was changed for the first time after 235K miles. LOL.
Overall we truly enjoy the practicality, reliability, and comfort of these fast sport wagons. Really glad the Swedes let their hair down and built these unique higher performance cars. With continued proper care, we are expecting to get 400K miles out of each of the three V70Rs!