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More odd problems...

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ilimzn   
Mon Jun 17 2024, 08:23pm
Joined: Dec 09 2023
Member No: #5418
Location: Zagreb
Hello everyone...

So here is the deal:

Problem 1:

While driving, every few minutes I get a 'suspension faulty' error (with 'SERVICE' lit up in the dash and HUD), and the suspension turns very hard. However, the condition usually lasts less than a minute and the suspension returns to normal and the SERVICE light goes out.

I have seen references to the steering wheel angle sensor needing calibration, and in that case the headlights don't turn in a curve, but mine do. I have not been able to establish any correlation between steering angle and the error appearing.

Otherwise the suspension works fine, the ride height seems correct, the height settings work fine...

Problem 2:

When the car is not used for a while (few days to a week) it loses remote central locking, it will not react to the keyfob. However, it can be re-programmed (standard holding fob button after giving it contact) and then will work... until it's not used again for a few days. Keyfob battery is good (renewed)

Any ideas would be appreciated...
RichardKC6   
Tue Jun 18 2024, 08:35am
Joined: Feb 11 2010
Member No: #49
Location: Derbyshire
Have you got a decent 100Ah S3/019 battery in it?

The remote issue definitely points to a car battery not good enough fault, and oddly enough with the suspension pump being one of the biggest drains on the car, a weak-but-almost-okay battery will struggle. I had a new 95Ah Halfords calcium in mine, but had things like headlights going offline - swapped it for a proper Yuasa 5000 silver 100Ah one and it's been a LOT better. I put the car on a CTek charger with a pigtail cable in the boot when I'm not using it, though it's actually good at shutting systems down.

(The other common problem on all cars of this age is the alarm siren module - a lot of 2000s-2010s cars use these integrated boxes with a battery pack in, NiMh or NiCd, and it ages and leaks, corroding the boards and causing short circuits - I had a persistent issue with my PT Cruiser, found the alarm module, removed it, and no more problems of battery drain).
ilimzn   
Tue Jun 18 2024, 09:59pm
Joined: Dec 09 2023
Member No: #5418
Location: Zagreb
The battery is a 2 months old Exide EA!000 100Ah premium battery, actually a recommendation from the forum. Apparently works just fine, the car starts immediately even after not being used a while. The FOB function gets lost within a few days to a week, there does not seem to be a pattern. It does not seem to get lost if I use it about every day (even without starting the car).

I do not think the car has an alarm module (though I could be wrong)... will check.
M2dis   
Tue Jun 18 2024, 11:18pm
Joined: Mar 20 2018
Member No: #3475
Location: Tartu
I have had the 'suspension faulty' error happen to me, but not as you described, I had it from time to time at first, riding along and 'suspension faulty' popped off, did not clear within a minute, but in a longer time-span. Later I noticed that the pump did not kick in after unlocking and starting the car, it did raise the suspension after the engine had been working for a while tho.

The pump electric motor was on its last legs for me, started with some odd 'suspension faulty' errors while driving and ended up not working at all
MGmike   
Wed Jun 19 2024, 10:29am

Joined: May 21 2017
Member No: #3151
Location: South Queensferry
Mine was a broken dog bone on the NSF height sensor. Check all of them are intact and moving freely.
ilimzn   
Wed Jun 19 2024, 07:23pm
Joined: Dec 09 2023
Member No: #5418
Location: Zagreb
M2dis wrote ...

I have had the 'suspension faulty' error happen to me, but not as you described, I had it from time to time at first, riding along and 'suspension faulty' popped off, did not clear within a minute, but in a longer time-span. Later I noticed that the pump did not kick in after unlocking and starting the car, it did raise the suspension after the engine had been working for a while tho.

The pump electric motor was on its last legs for me, started with some odd 'suspension faulty' errors while driving and ended up not working at all


Did the suspension turn hard when the error appeared?
M2dis   
Thu Jun 20 2024, 07:17pm
Joined: Mar 20 2018
Member No: #3475
Location: Tartu
ilimzn wrote ...

M2dis wrote ...

I have had the 'suspension faulty' error happen to me, but not as you described, I had it from time to time at first, riding along and 'suspension faulty' popped off, did not clear within a minute, but in a longer time-span. Later I noticed that the pump did not kick in after unlocking and starting the car, it did raise the suspension after the engine had been working for a while tho.

The pump electric motor was on its last legs for me, started with some odd 'suspension faulty' errors while driving and ended up not working at all


Did the suspension turn hard when the error appeared?


It felt a bit stiffer, but wouldn't say that it got hard.
 

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