How do you use start stop feature?
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62 posts in this topic

19 hours ago, Karl said:

And a lot of other parameters. The Kadjar makes it's own decisions, when it's ok to use the start-stop. Just sit back and relax ;-)

Yes, too true. I have given up on mine as it never works, or only does on occasion. Even having the heater set a little too high will prevent it cutting in, or out in effect.

I thought it was down to the diesel approaching it dpf regen cycle but no, even after a good thrashing for an hour when at the hottest it gets it will not shut down. It works once after about a miles run and then never again. Done this since new 15months ago. Not me as previous car,qashqai, was fine.

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Hi Yes most of above is correct but ours works long before normal running temperature  is achieved Now question was how do you use stop start with same turned on ( switch on dash right hand side ) when driving and you stop  say at junction        YOU THEN PUT FOOT ON BRAKE GEAR TO NEUTRAL AND FOOT OFF CLUTCH             failing to do         ALL        the above engine will keep running I think , this is not a fault  but just how it works    🤔    hope this helps 🙃

 

JC. 😎  ☕️  🥃

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Mine works very occasionally too. I have investigated possible reasons with ODB2 and Torque and it seems that main reason of failure is battery charging level. It have to be at least 80% full to start-stop working ("Bat Min chg." on the screenshot).  Battery of my car usually is in range 69-75% ("Bat Charge"). Even after 2 hour highway driving!!! Only after charging with external charger start-stop works for couple of days and then stops again.

I thought that it only problem of my car, but now reading posts in this thread it seems like it's the common problem with Kadjar. I don't know is it weak actuator, faulty voltage/current sensors or car's "brain" itself, but anyway - welcome to the club :)

  

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It actually leads into another issue I and I'm sure other Kadjar drivers have;

Long before stop/start functions on modern cars I got in the habit of switching off the engine if say I got to a set of lights I knew and realised I had a good while ticking over before the lights changed. Always kept cars in good order so no issues re batteries etc. 

I now have to revert to the same method in the Kadjar as it simply never works regardless of battery charge. However this week I was caught out. Car started with fob in usual pocket but same 1 as phone, turned of at narrowly controlled junction. Pressed start to move of and the bugger couldn't find the key signal. Felt a proper prat as sat through a complete circuit of light changes as did 3 folks behind, while I dug the keys out of my pocket. 

I need to leave the fob "exposed" in future but the whole idea is that it works in a bag or pocket.

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Not sure if it works the same in a manual but in my auto you have to use a certain amount of force on the brake pedal before it operates. So if you just hold it gently it won't operate until you increase foot pressure.  It is very good in the petrol auto...fast to start up again and much less start up noise, fuss and jerking than with other cars I've driven that have the feature.

 

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On 17/12/2017 at 6:35 PM, Melville said:

I rather think that stop start doesn't work as well in ECO mode.

How ironic is that.

I really have given up on mine, didn't work after a 70 mile run at xmas and battery showed 13.9 volts on the fluke.

What is strange is that the system in the qashqai (same car and shares same battery) worked perfectly even though mine was one that had the faulty battery that failed at 18 months.

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Yes, it definitely  (electrical) engineering fault in Kadjar.  I stopped using start-stop because its benefits are doubtful.  We can maybe  save small amount of pollution, but lose in battery and starter lifetime.

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21 hours ago, Arthur_Kono said:

Yes, it definitely  (electrical) engineering fault in Kadjar.  I stopped using start-stop because its benefits are doubtful.  We can maybe  save small amount of pollution, but lose in battery and starter lifetime.

I'm a big believer in it and have done it manually in every car I've owed over 30 years with no issue, now back to switching off myself in the Kadjar at lights. My reasoning is if the battery won't stand it it needs changing anyway.

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If you press the brake pedal hard after stopping at the red traffic light, and when it changes to green you can release the pressure a little bit on the pedal and the engine will start an be ready when the road is clear a few seconds later. Otherwise I think the start stop is too slow in action expecially with an automatic transmission, it does not start when the gas pedal is pressed and when it finally starts the car jumps away. That is very irritating and I usually shut it off in moderate traffic. In endless ques whith most of the time standing still, it may have a purpose though.

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2 hours ago, 1898 said:

If you press the brake pedal hard after stopping at the red traffic light, and when it changes to green you can release the pressure a little bit on the pedal and the engine will start an be ready when the road is clear a few seconds later. Otherwise I think the start stop is too slow in action expecially with an automatic transmission, it does not start when the gas pedal is pressed and when it finally starts the car jumps away. That is very irritating and I usually shut it off in moderate traffic. In endless ques whith most of the time standing still, it may have a purpose though.

You don't have to press the pedal hard, just enough to operate the pedal switch. It's only slightly harder than resting your foot on the pedal but the manual bigs this up more than it should.

I can stamp on the brake then tickle it with a feather, still doesn't work.

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56 minutes ago, turboted10 said:

You don't have to press the pedal hard, just enough to operate the pedal switch. It's only slightly harder than resting your foot on the pedal but the manual bigs this up more than it should.

I can stamp on the brake then tickle it with a feather, still doesn't work.

Yes, it does, but if you would like to start the engine still with the brakes applied, the initial pressure on the brake pedal must be higher so the brakes are not released when you lift the foot ever so slightly.

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3 hours ago, turboted10 said:

You don't have to press the pedal hard,

If you see this symbol, then press was hard enough for start-stop, but it blocked for some reason (for me usually battery low charging level).

.5a53a24db6a63_2018-01-08(1).png.3c160d84548b7505ac277430957c9086.png

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15 hours ago, Arthur_Kono said:

If you see this symbol, then press was hard enough for start-stop, but it blocked for some reason (for me usually battery low charging level).

.5a53a24db6a63_2018-01-08(1).png.3c160d84548b7505ac277430957c9086.png

Yes, I get that everytime, it only takes a light push, but still never stops. 

Qashqai before worked, Clio we have works, something different about this one, not important but just another niggle that spoils the experience.

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You'd better take a visit to your dealers. It's not a design fault cause mine works flowlessly. Always. Every time. No hard pushes or something. Just a regular stop.

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1 hour ago, AOne said:

You'd better take a visit to your dealer

Already did. They resume:

1) I have too short trips and battery constantly discharge. Thus I have to periodically charge it with external charger.

2) CLIP diagnostic didn't show any errors and battery test was OK.

3) Stupid consumer and dealer always smart :)

I don't know how to exactly determine "short trip". I have usually 2 times per week 2x50km trips and rest of weekdays a little bit shorter ones (10-15km). 

I'm going to do own independent tests by Renault official instructions. Like this:

Checking the current delivered by the alternator

Engine running.
Warm engine.
All consumers switched off.
Put a current clamp on the connection

In which range is the current delivered by the alternator?
Less than 5 A
Replace the alternator.

Between 5 A and 35 A
Go on to the next step. >>>>>>>

Greater than 35 A
Check that there are no electrical components consuming an abnormal amount of current.
Disconnect the fuses one by one.
Comparing the current delivered by the alternator with
and without electrical consumers switched on

Engine running.
Warm engine.
Put a current clamp on the connection
Switch on all of the consumers (main beam headlights, de-icing,
passenger compartment ventilation),then record the "I2" current
delivered by the alternator.

Switch off all of the consumers, then record the "I1" current
delivered by the alternator.

Compare the two values measured.

What is the obtained result?
"I2" greater than "I1 + 5 A"
Go on to the next step. >>>>>>>

"I2" less than "I1 + 5 A"
Replace the alternator.

 

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On 09/01/2018 at 6:54 PM, AOne said:

You'd better take a visit to your dealers. It's not a design fault cause mine works flowlessly. Always. Every time. No hard pushes or something. Just a regular stop.

I'm sorry but just because yours works doesn't mean there isn't an issue with design or battery. Problem is no matter how many times you complain, until it fails completely they will always say it's fine as it will pass Renault's battery function tests.

In argument, "mine doesn't work so there IS a design fault"

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Hi Not sure if you call it a DESIGN PROBLEM when some or even most work fine, seems to me you have a faulty component which is quite different to a design fault, now all you have to do is convince your dealer to find said component hope it works out and you get it sorted.  👍

JC😎😎🥃🥃

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1 hour ago, J C said:

Hi Not sure if you call it a DESIGN PROBLEM when some or even most work fine, seems to me you have a faulty component which is quite different to a design fault, now all you have to do is convince your dealer to find said component hope it works out and you get it sorted.  👍

JC😎😎🥃🥃

Exactly :)

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