Just wondering who has some high miles on their Diamante and what kind of maintainance they have had to do so far. Mine has 117,500 and so far brake pads at 100k, 2 - O2 sensors at 105k. I had the timing belt changed at 75k and tranny flushed and coolant flushed at 100k. Complete tune up at 100k. Runs great..! (knock on wood)
Just curious who else has had good and bad luck with theirs with high mileage. I also have run Mobile 1 in it since new. Change oil at 5 k intervals.

 

I'm at 125K now. No takers here ..? I'm just curious.

 

Mine has 218,000+ today, Runs ok, although there is a few things I am working on getting fixed. Has lots of power still, shifts well. Heater core was replaced, Valve cover gaskets done recently, had rare rotors replaced, Driver window regulator replaced, New Kenwood stereo installed with new door speakers, New head lamps, needs some small body work done because it was repo'd from previous owner and they beat and scratched it. Also looking for a reasonably priced grill for her because hers is missing. I call her Shania, and she is a good car, still mechanically solid and hoping to take her to 300,000+.

 

Wati - Thanks for letting me know about 'Shania". I too hope to get 300K out of her (no name yet, but now I'm thinking..). I too had to replace the valve cover gasket cause it got hard and just started to leak a bit. One headlamp that fogged up that I found on ebay..! A new stereo (I went with Alpine cause it was on sale). I flushed the trans @ 100K and flushed the radiator too just because. It is a very solid car and comfortable and roomy. Resale sucks so I might as well drive it into that place of no return. I have never done that before but with this car I might as well try it. Thanks for letting me know and post every now and then and I'll do the same. Maybe others will as well.

 

142368 miles as of today
right now having electrical problem and want to get it fixed. have already posted on this forum with my question.
timing belt changed, O2 sesor changed, TPS switch changed, alternator changed.
I will keep her running probably for another year or so.

 

190,000 and only drove the car home since buying. Rear strut mounts are rusted out and there aren't any available at the parts stores or online. Rear passenger door doesn't open and rear driver door won't close. Those should be easy fixes but the strut mounts not being available is making me ready to just get rid of it and let it be someone else's headache.

Timing chain, brakes, alternator and battery just replaced at 188k, has 190 now.

 

My 2001 TJ Magna (Diamante in US) has just cracked 140,000mi; I have owned it since 111,000mi.

It had a patchy service record prior to my ownership, so I set about filling in the holes in the history and undertaking some preventative maintenance:

25/2/12 179800km
Engine flush added prior to oil change (ACDelco 88901044)
Oil replaced (Penrite HPR5 5w40 Synthetic)
Oil filter replaced (ACDelco AC028)
Fuel filter replaced (Mitsubishi VSP VS000466)
Air filter replaced (Mitsubishi VSP VS000436)
Rear bank platinum spark plugs replaced (Genuine Mitsubishi MD339798)
Front bank spark plugs replaced (Genuine Mitsubishi MD339799)
Coolant replaced (Genuine Mitsubishi MR365972)
Radiator drain plug replaced (Genuine Mitsubishi MB597892)
Fuel Injector Cleaner added (Mitsubishi VSP VS000029)
Engine oil sump plug and washer replaced

1/4/12 183580km
Throttle body replaced (ISC motor bolt sheared, replaced with known working used item)
Upper Cylinder Cleaner added after fitment (Genuine Subaru SA459)

28/4/12 186395km
Rocker cover gaskets and spark tube seals replaced – both banks (ACL VCK5008)
Ignition lead set replaced (Top Gun TG6129)

31/5/12 189061km
Timing belt, tensioner pulley, hydraulic adjuster, idler pulley, camshaft seals, and crankshaft seals replaced (Genuine – VS000231 & 1145A070)
Water pump, gaskets and O-ring replaced, coolant added (Genuine – VS000290)
RH Upper engine mount replaced (Genuine - MR244457)
Power steering and Alternator & A/C drivebelts replaced (Genuine – VS000131 & VS000149)
LH Upper timing belt cover replaced (damaged, Genuine – MD331392)
Radiator cap replaced (CPC 580-90)

16/6/12 190351km
Engine flush added prior to oil change (Repco)
Oil replaced (Penrite HPR5 5w40 Synthetic)
Oil filter replaced (ACDelco AC028)

26/6/12 191348km
Front wiper blades replaced (ACDelco M500AU & M550AU)

7/7/12 192290km
Low beam bulbs replaced (H7- Osram Nightbreaker)
High beam bulbs replaced (H1- Genuine GM)
Parker bulbs replaced (T4W – Genuine Mitsubishi)

20/7/12 195415km
Blow-by hose replaced (Genuine MD323924)

22/7/12 195501km
PCV Valve replaced (Fuelmiser PCV-111)
1x Spark plug replaced (fouled with oil due to blocked PCV, Champion RC10YCC4)
1x Ignition lead replaced (fouled due to oil soak, used, Champion)

1/8/12 196650km
Automatic transmission serviced/flushed (Hitec Oils Multitrans ATF synthetic fluid – 10.5L)

21/8/12 198798km
Heater core replaced (Genuine – MR927775)
Heater core pipes & O-rings replaced (Genuine – AW349218 2 & MR927776 x2)
Heater hoses replaced (Genuine – AW339441 & AW339442)
Thermostat replaced (Genuine - MD350415)
Upper and lower radiator hoses replaced (Genuine – AW350831 & AW342518)
Coolant topped up (Genuine - MR936572)
Air Conditioning system re-gassed
Automatc T-Bar button replaced (Genuine - AW351775)

8/9/12 200706km
Engine flush added prior to oil change (ACDelco - 88901044)
Oil replaced (Penrite HPR10 10w50 Synthetic)
Oil filter replaced (ACDelco AC028)
Combustion cleaner added (ACDelco – 88900161)
Fuel Injection Cleaner added (ACDelco – 88900162)

10/9/12 201031km
Distributor cap replaced (Genuine – MD619511)
Distributor rotor replaced (Genuine – MD619274)

29/9/12 202982km
Front and rear coil springs replaced (Pedders lowered – used, approx 5000km use)
Front struts replaced (unknown brand – used, approx 5000km use)
Original Monroe GT GAS rear shock absorbers re-used

26/10/12 205486km
Front brake pads replaced (EBC Ultimax – DP1509)
Front brake rotors replaced (RDA slotted – used, machined)
Brake fluid flushed/replaced (Nulon Xtreme Performance Super DOT 4)

23/11/12 207549km
Power steering fluid flushed/replaced (Repsol Matic III synthetic fluid)

27/12/12 210661km
Engine flush added prior to oil change (STP Engine Flush)
Oil replaced (Penrite HPR10 10w50 Synthetic)
Oil filter replaced (ACDelco AC028)
Oil additive added (Wynn's Supreme Engine Tune-Up)
Fuel Treatment added (Wynn's Complete Fuel System Cleaner)

17/2/13 216345km
All six spark plugs replaced with Iridium components (Autolite Iridium - XP3924)
All bolts retensioned on both rocker covers
Air filter replaced (Beck/Arnley – 042-1587)
Lower manifold replaced with known good used item (bolt thread stripped)

1/3/13 217249km
Bonnet struts replaced with used reconditioned items (reconditioned June 2011)

5/3/13 217525km
PCV hose replaced (Genuine - MD321355)

16/3/13 218362km
4 tyres replaced (4x 225/45R18 Federal Formoza FD2 (new))
4-wheel alignment performed

6/4/13 220130km
Engine flush added prior to oil change (LiquiMoly Engine Detox)
Oil replaced (Castrol Edge Titanium 5w40 Synthetic)
Oil filter replaced (ACDelco AC028)
Oil additive added (Wynn's Engine Tune-Up & Oil Stabiliser)
Fuel Treatment added (Havoline Techron 5000)

19/4/13 221177km
Front swaybar 'D' bushes replaced (Genuine – AW343164)
Front swaybar links replaced (regreasable type, MOOG – K80186)
Handbrake adjusted/tightened
Rear brakes inspected for scraping noise when turning. New handbrake shoe kit and rear discs required (to be done)
Underbody inspection performed, all OK

The only unplanned repairs were the heater core (pipes snapped from age), throttle body and inlet manifold (bolt snapped in TB, bolt stripped in inlet manifold).
Immediate future plans include replacing all four struts, handbrake shoes, rear brake rotors and pads.

 

My 2001 Diamante has 178K and has had the timing belt and heater core replaced by previous owner. We just replaced the rear struts and tops. Replaced rear rotors and pads about six month ago. Still needs a new timing belt and the TCL light is on. Still runs great though. These seem to be pretty high maintenance compared to my 2000 Toyota 4Runner with over 240K on the clock. Brake rotors and pads, 2 timing belts, new rear shocks and replacing starter solenoid contact is all that's had to be done to it since new.

 

I have 295k on mine. Basic maintenance