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:mad:My 05 MO with 87K kms is heating up in the Dubai heat. Temps today and yesterdsay were in the 110-115 range and in traffic jams, with the AC on the temp would climd to the 2:30 O' clock point (about 60%).

FYI: The car still has original coolant and thermostat on it.
FYI: I've seen on my wife's 03 Maxima and friend's Altimas that the temperature needle stays FIXED at operating temp. :confused: I drive my wife's maxima at 140-160 kmph often with AC on and the needle never moves.


My old mechanic told me as long as its not reaching the H, you are fine. Dont mess with the genuine factory installed coolant and thermostat yet till its about 100-120K kms.

PLEASE HELP ME I DONT WANT TO RUIN MY MO. I can replace the coolant on my own too, have done it once on a Prelude and a Honda CRX.
 

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MM-

Your old mechanic is right... and wrong.

He is right when he says there is nothing wrong with the engine when the temperature gauge reads toward the high end of the NORMAL range. That is just what it is - the normal range. Any reading within this normal range is fine. The fact that it is 110-115F, you are sitting in traffic with the A/C is on and the coolant temperature is only slightly elevated is a very good sign. I would only worry if the coolant temperature remains elevated while traveling at night with the cooler temps.

I also believe your old mechanic is wrong when he advised not to changed the 6-year-old OEM coolant. It is plausible Nissan uses a special long-life, high-ambient-heat coolant specifically for MOs shipped to your part of the world. And if that is the case then your old mechanic is right. However, the Service Manual for North American MOs recommend the engine coolant be replaced initially at 4 years or 96,000 kilometers.

-njjoe
 

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Discussion Starter #3
Thanks NNJOE FOR THE QUICK RESPONSE. Yes, the cars here are shipped with a little tighter specs cause of the harsh environment.

SUNCE YOU SAY IT'S NORMAL RANGE (and I accept that), but my wife's Maxima maintains coolant temp at a fixed dead spot slightly above the second mark, approx 4 o'clock mark. So do Altimas here. Plus, just met a guy at the hospital with the exact same MO, but with 200k kms on his. He said his needle stays still at 4'oclock mark and all is fine.

UPDATE: MO HAS NO ERROR CODES.
 

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I suggest drain, flush, and fill. If you're mechanically inclined putting in a new thermostat and radiator cap can't hurt, only a few more bucks. My bet is that you're coolant is to blame. Never being flushed and filled since 04 makes for some funky stuff in your radiator and cooling system.

Good luck!
 

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Discussion Starter #5
What do you use for flushing?
Any write up available here? I'm gonna search.
How long does the whole procedure including the thermostat change take?
 

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Just something tells me to give it to the dealer to atleast check why is the needle fluctuating so much and is not at one place like the other cars.

Has anyone here experience similar problem?
 

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Has anyone here experience similar problem?
I have had cars with both "still" and "fluctuating" temperature gauges. The gauge on my MO rises to normal then never budges, regardless of the outside temperature or driving conditions. The gauge on my MG Midget would drop noticeably whenever I turned the heater on high in the winter. The gauge on my Jeep moved depending on ambient temperature and traffic flow. The Jeep's gauge would also climb higher than normal during initial start-up then after the thermostat opened the gauge would drop down a bit.

-njjoe
 

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Okay then, just gonna change the fluid and be done with it. Will report later wheen done.
Shall do wife's Maxima as well following weekend.

Thanks to all for the support.
 

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Every car is different. You cannot expect the temp gauges in two cars to behave exactly the same way.

I agree that a radiator flush and fresh coolant is due.
 

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I agree, a coolant drain and fill is in order especially in your kind of climate and condition.
By the way, how's life in Dubai. I worked there in the mid-80's in Sharjah. Always like going to Karema. Lots of friends in Abu Dhabi even to this day.
Too bad, I didn't get to see Burj Khalifa and the Dubai mall in its grandeur.
 

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Discussion Starter #14
Nipsirc: I'm gonna drain it in couple of days.
Dubai is boring as ever. I was born in Abu Dhabi. There's nothing here nut malls and sand. Oh, and heat.
 

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I agree, a coolant drain and fill is in order especially in your kind of climate and condition.
By the way, how's life in Dubai. I worked there in the mid-80's in Sharjah. Always like going to Karema. Lots of friends in Abu Dhabi even to this day.
Too bad, I didn't get to see Burj Khalifa and the Dubai mall in its grandeur.

lol. Karama. Also known as "Dolce&Karama" for the famous brands you find there. In the mid 80's you were 20 years away from Burj Khalifa and the new wonders of UAE.
 

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Al Satwa and Karama was the place to be. When I was an engineer for Bechtel at Jebel Ali back then, we used to pick up ladies from there and bring them to Jumeirah. Back then , it was just a plain old beach. Bring back old memories....
 

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Discussion Starter #17
lol nipsirc those days are gone. I kinda miss that though, things were so simple back then.

Back to the issue. Changed fluid, and radiator cap. All is well now. Mechanics said as long as you do not hit H, you are just fine.
 
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