Mind sharing what issues you have faced in detail? Thanks.

1st batch zc21...

Anyone know how to determine the ignition coil need to change? i have drove my honda city 2013 until now mean around 7 years. is it time to change ignition coil? i have replace my spark plug which even not fully worn i still change it.

Only when the engine suddenly misfiring or sputtering.

Ignition coil aside, the cooling system is a problem that left me stranded twice on the roadside - radiator, hoses and thermostat, steering rack, gasket and oil seals, arms and bushes, sold it before the next change cycle is due.

How long did the cooling system last before it failed on you?

I bought it 2nd, never occurred to me it failed within 1st year..change radiator and hoses, then 2nd time struck in 2nd year - this time thermostat and subsequently other things crept up..but still it's a good 5 years ownership, think I spent around 15k+ on repair not inclusive of servicing.

Thanks for sharing. Just got 1 several months ago and did some refreshes. Wanted to do a full cooling system refresh but my mechanic said the expansion tank seems new and the hoses are still pretty decent so I should wait to save money lol. Sometimes I do worry as the cooling system and the fuel pump are the biggest suspects in leaving us stranded. Glad to know your overall ownership was deemed as good haha.

Recently changed the ignition coils on my 2013 Citroen DS4, car has done 32k since new.

Symptoms? Sluggish throttle response, high fuel consumption and rough idling.

Ignition coils for Conti cars are extremely sensitive to battery voltage, never ever get suckered into putting a higher voltage battery than the stock one.

My E46 was way back almost 10 years ago, the maintenance cost should be much lower by now I suppose. In regards to maintaining a BMW - always change the whole chain of parts- meaning - for example, once you change compressor, be prepared to change condenser, cooling coil, cooling fan etc, my mechanic always say conti require to change the whole rather than sum of parts otherwise subsequent failure is deem too risky and can potentially affect critical component. This is the reason why maintaining a conti require extra budget, u need to replace connected components - not sure if your mechanic give the same advise.

almost impossible to fail
potentially only the coil boot can get brittle and leak.

I broke one of the brittle connectors of my 15-year-old Vios ignition coils when changing spark plugs. Didn't change, just secured with cable tie and it was good to go until I sold the car.

Proton suprima 2014. 200k km still on default plug coil. All is good.

Just an update! The damaged coil somehow damaged the ECU and it cost me RM 11k to replace a new one! As i m quite Keng sei , so i got it done at franchise SC! Damn...have to relook at withdrawing from I-sinar liao!

ya....my myvi also around 80k mileage liao and all good! Just replaced the engine mounting recently!

Feel sorry for the repair bill ....
Actually what is the mechanism a mal-function ignition coil can cause damage back to ECU ?
Surely a protective safety steps/diodes can be built into the ECU electronically right ?

This post has been edited by zeng: Jan 31 2021, 01:56 PM

Wow.
What ride?

Sorry to hear, maybe you should have look for ECU/chip repair specialist, but since it's already done, then no choice, otherwise these specialist will open your ECU and rebuilt..probably cost a fraction.

CAr jerk during cold start in the morning! when you turn off and restart again, everything gone back to normal . Also Suffered from torque issue when on low RPM around 1k @ 40km/h. This was a engine misfiring issue i belip.

I did asked and google but cant seemed to find the right answer for this issue. My personal experience would be when if your car has torque issue, better to check the spark plugs and coil. Damaged coil will most likely damage the ECU if the issue is not being resolved early as i was told.
C klasse!

Thought so too bro but i preferred to have warranty for peace of mind as ECU is quite a critical part of the car. Actually i have gone for two opinions on this issue, one from the MErcs specialist workshop and one from C&C .

This post has been edited by 19 Degree South: Feb 1 2021, 09:58 AM

Let me share, my car TCU (transmission control module) kong and I am practically stuck on gear...was outstation at the same time, it's was absolute panic - had to drive 200 km stop start before I reach nearest RNR for towing, due to stipulated distance

Checked with SC - the cost blew me sideway - rm2500 not inclusive of labor for new TCU. Then I surveyed around and found a specialist who advertised ECU repair. Again arrange for tow truck to sent to sg buloh - total repair rm1.5k - with 6 months warranty, whereas new TCU replacement at SC - 1 month warranty.. just sharing, maybe your SC give longer warranty..