Owner of 2007 Avanza 1.3L K3VE here ..... 245,000 km todate.
Yep, bouncing with road dip ...... sigh.
Do stiffer/harder shock absorbers help ?

I bump up my tyre pressures helping up at agility and fuel economy ... probably acceleration too, IDK.
Factory recommends front at 31 psi and rear at 35 psi.
I selected 38 psi all round, now at 40 psi front and rear.

Limited tyre overpressure (say, up to 30-50 % above OEM's ) at design loads won't cause tyre overheat.
It's tyre underpressure AND overloading that cause tyre overheating.
Am getting 11.5-12.5 km/L i.e 400+ km per tankful fill.

40 psi is 275 kpa , mate.
400 kpa exceeds 185/70R14 tyre maximum allowable pressure, cannot pakai.
Isn't 210 kpa too low for Avanza 1.3 ?

Tyre underpressure means below factory recommended tyre presssures .....
my Avanza 1.3 spec's 31 psi Front and 35 psi Rear ....
Try overpressure to say, 36-38 psi to see if fuel consumption improves .... albeit a harsher ride possibly.

The Michelin XM2 in use today at rear axle was manufactured in week 39 of 2011 ....
probably > 100,000 km mileage ???

This post has been edited by zeng: Mar 19 2017, 08:15 PM

Anyway XM2 that I have is not known for braking grip ..

Not sure tyre brands other than XM2 would make a difference .... probably would give it a try..
or maybe it's inherent with Avanza, IDK.

Appreciate update here if bounciness would improve or otherwise .

RON95, BHP and Caltex has better fuel additives I suppose. IDK.

I heard ori Avanza absorber too soft and thus bumpy.
Is that true?

Thanks, mate.

Shell Helix Ultra 5W40 VOA virgin oil analysis shows additives like Molybdenum and Boron for friction reduction .
I have done 14300 km with this oil type in my Avanza 1.3 and very happy about it .

This post has been edited by zeng: Feb 13 2020, 02:25 PM

The moment sensing my 2005 Avanza fuel consumption increases from 12.x km/L to 9.x km/L , I replace my cheapo RM12@ spark plug at 60000 - 70000 km usage with a gap width of 3 mm .

New spark plugs set doesn't help at all .

Went back to mechanic checking with computer software , identify and replace old original (293K km) O2 sensor with non-Perodua O2 sensor , consumption returns back to normal like before .

Hence, IMO you need not change it until and unless you can detect/measure huge increase in fuel consumption .Yes, that is not in compliance with OEM recommendation .

Note:The over-long usage (vs recommended 20K something km ?) cheapo spark plug set at 3 mm gap width could still deliver good fuel consumption at 12.x km/L until O2 sensor goes kaput in my Avanza . Whilst engine starting and acceleration pick up etc were normal and in good shape .

This post has been edited by zeng: Mar 1 2020, 11:58 AM

I'm doubtful your 2016 has spark plug set and O2 sensor problem .
However, you may want to check the electrical distributor cable/holder thing IMO .

My 2005 Avanza 1.3 front wheel bearings lately gave some funny noise like a soft 'grrrrrrr' .
After replacing the 2 bearings , it is normal again .
This wheel bearing problem is like every 2-4 years .
Whereas my wira and Prado do not have such problem .
Any one here has similar problem at regular intervals ?
Do you think this is abnormal ?
TIA.

This post has been edited by zeng: Apr 20 2020, 09:42 AM

Yeah, 2-4 years . I think something wrong is going on .
14 years life , wow . But i think that may be doable , in typical toyota .

Your Avanza wheel bearing life is normal to me .
The article you link to suggests average lifespan of 136,000-160,000 km is realistic and probable IMO .

Your's 2006 is about same age as my 1.3L Avanza ,but having good durability on wheel bearings .
Is your's a 1.5L or 1.3L ?

Thanks .
Other than the recurring wheel bearings replacements , in particular front axle , I must acknowledge my Avanza 1.3L is generally quite maintenance free for the past since new and happy with it's reliability over 300K km mileage .
IMO, this is typical Toyota or Asian vehicles .