I had U350100 as a soft fault in my Tiguan's system for a while about a year ago. I had it throw a hard fault and CEL for the same code twice. I found this to be caused by a fatiguing main battery. Not able to hold a high enough charge constantly to keep all the systems happy. I replaced and coded the replacement battery (000-915-105-CC-DSP) from VW. Made sure to change it's coding to know it was an AGM battery I installed in the Tiguan. Fault has not returned since.
The entire suspension was recently replaced with German parts, along with a full upgrade of rotors and low-dust ceramic pads on all corners and a new Duracell battery a few months ago.
When you change/disconnect the battery you will have the dash light up....just drive it and they clear out once you hit ~10mph.
I replaced mine with a Duracell branded battery from Batteries Plus. Direct fit, vent tubes connected right up.
Tdi Touareg (mid 2000s) battery fits, with posts recessed and in the right place. Dealer price used to be like $115 and they are solid 900cca performers.
My original vw battery made it 8 years and 170k miles, but 10 years is pretty damn good!
Threw a Duracell 12v in my second gen Honda Insight, and it did fine for the six additional months I had the car.
Since the battery weighs ~40 lbs this isn't really a significant weight change from front to rear so I've no idea if the car handles any differently. Would I recommend this mod? Probably not as it's not cheap and has no real performance advantage and more crazy than anything.
the battery in my 2016 died while JUST inside the 36k warranty. the OEM replacement lasted another 30k or so. bought an AGM replacement from Costco, but I don't expect it to last any longer.
On the other end of the spectrum, the eGolf sucks. It wasn’t good when new and I can’t imagine spending that kind of money to repair it.
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