could be wiring loose or something which is suspected.
I was actually hoping for entire blue print layout of our Saga/Isawara model published.

dont have any idea how the swtich looks like inside.

This post has been edited by langatian: Jan 2 2015, 04:46 PM

now only report in..haha

When the turn-signal misbehaves again try this:
immediatedly switch on the hazard lights.

If the hazard lights work, then it is not
the flasher relay unit, but could be fuse contacts, or
steering column switch, or hazard light switch.

If the hazard lights also does not work, then the flasher
relay or hazard light switch could be suspect.

Note that the hazard and turn-signal circuits share the
same flasher relay and both passes thru the hazard switch,
but uses different supply circuits and fuses.

(I also would like to get hold of a copy of Proton service manual,
now just make do with Haynes + bits from internet)


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What is the best manual transmission fluid that your iswaras currently using?

Mine currently on castrol gl-5 80W-90. The first and second gear plus reverse seems hard to get engaged. I read somewhere before that the reverse gear doesnt have a synchro.

After the car fully heat up from the journey from seremban to kl, kl to seremban, the engagement seems hard to get in gears. unlike during cold, the gears gets in easily.

What is the problems? Fail syncros or gear oil? If is the oil is the problem, is the petronas gl-5 manual trans fluid recommended?

Could be due to contamination of gear oil, gear change linkages worn,
clutch cable needs adjustment, or worst case synchromesh failure.

When did you last changed the gear oil? I had this gear change
difficulty also, which was resolved by changing the gearbox oil.

(as far as I know, reverse gear has no synchro mesh, just
plain idler gear only)

This post has been edited by Albert B: Jan 2 2015, 09:54 PM

how to change front left signal bulb? already kaput.

long time no see your post

Mine was a bit different. When the car was fully heated up (i/e drive long enough), then the gears engages very easily. However, when i just started the car, the gears are hard to engage. I eventually have to force them in. Will have the forman help me check during my chinese new year break lol... now just bear with the pain.

You mean the bulb as circled? I think the whole unit
is attached by one screw, accessible thru the hole in
the headlamp (arrowed).


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I just solve the hard engagement of first and 2nd gear as i changed to 2 liters of 75w-90 toyota transmission fluid. But the satisfaction is still not there. . I still searching for thinner transmission fluid like the owners manual that required sae 80w or 75w-85.

I'm sure you are using mono-grade transmission fluid that likely to be Sae 90w as this are not all season multi-grade gearbox fluid. Wait for the sifus to clarify

manual specified 75w85? perhaps can consider redline MT85 or give a shot to MTL (75w80)

that's what my inspira manual is using as the viscosity specification by Mitsubishi is 75w80

You were using GL5 oil? I looked up on the gear oil characteristics, and it seems that GL5 oil is not suitable for synchromesh in manual transmissions. And also cause damage to "yellow metals" in the gearbox.

yeah that is correct and that's why i am sticking to GL4 gear oils for my inspira

I need to check back the oil I am using. I changed my gear linings recently and I am not too sure what oil the mechanic used.

Does it makes a big difference, I mean when you used the Toyota gear oil?

LUBRICATION OIL FOR MANUAL GEARBOX
Beware of the oil that you are using for your manual transmission.
Gearbox oil is unlike engine oil where higher rating is better, this
does not apply to gearbox oils.

Proton specified GL4 oil for Iswara manual gearbox, and using GL5 oil
will harm your synchronizer bronze/brass and also cause difficulty
in gear shifting.



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Attached File(s)
 Transaxle_oil.pdf ( 1.63mb ) Number of downloads: 50

yes. i will DIY for it.

Extract from Proton user manuals regarding the fluid specs:


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thanks for the pictures

i believe the HUGE confusion is the statement:
"6. API classification GL-4 or higher"

since they specified 75w85 with era of API SG, i believe 75w80 can be applied as well and that can easily eliminate many cold shifting issues

Agreed, Proton was not careful in using the words "or higher" which is
very misleading. (Probably the manual author was thinking along the
lines of engine oil ratings)

However, the LMST version did not have these misleading words.