2015 golf r

[Rosscot]

Hi guys am new of owning golf r after selling my r32 so had the car a few weeks runs great was about to use the car to go shopping and the car struggled to start once started was fine for the day checked the voltage for the battery I believe it was around 12.48 left it over night was about 12.38 and started no problem this time

 

[NopeR]

Ok

 

[vj123]

One of the longest sentence i have ever read.

 

[Coolrunning39]

Cool story bro.

 

[riceburner]

If original battery might be worth replacing if you got 200 bucks to lose, or you can try reseating the terminal clamps on the battery posts. Sometimes an imperfect connection causes dumb issues like that. Autozone tests batteries for free as well if you wanna be sure.

 

[HalfGerman]

Ross do you know the service history of the car and how many miles are on the car was this a one time thing or has it occurred several times if something only happened once it is hard to diagnose any CEL on it the more info you can give the better

 

[kevinkar]

If original battery might be worth replacing if you got 200 bucks to lose, or you can try reseating the terminal clamps on the battery posts. Sometimes an imperfect connection causes dumb issues like that. Autozone tests batteries for free as well if you wanna be sure.

This is always a good first thing to do. Low voltage is a bad thing for modern cars that run almost entirely off of electrical components and computers and, by cleaning the battery terminals and cable clamps thoroughly, you remove resistance that usually brings the voltage back up to a better level for a while. That gives you time to test the battery and prepare for buying a new one if needed.

I had a 2005 Corvette that would not start because the voltage was not high enough to get the column lock (a common failure point) to disengage. Voltage on the ECU was 11 or so but at the terminals was 12.5 or so. Plenty to start the car but not enough to get the ECU to get the column lock to disengage. I started carrying around a wrench and battery terminal cleaner so I could disconnect it, clean the terminals and clamps, reconnect and BAM! Car fired up.

It's a cheap and easy thing to do first.

 

[jimlloyd40]

This is always a good first thing to do. Low voltage is a bad thing for modern cars that run almost entirely off of electrical components and computers and, by cleaning the battery terminals and cable clamps thoroughly, you remove resistance that usually brings the voltage back up to a better level for a while. That gives you time to test the battery and prepare for buying a new one if needed.

I had a 2005 Corvette that would not start because the voltage was not high enough to get the column lock (a common failure point) to disengage. Voltage on the ECU was 11 or so but at the terminals was 12.5 or so. Plenty to start the car but not enough to get the ECU to get the column lock to disengage. I started carrying around a wrench and battery terminal cleaner so I could disconnect it, clean the terminals and clamps, reconnect and BAM! Car fired up.

It's a cheap and easy thing to do first.

If I get a 2005 Corvette I'll keep that in mind.

 

[jimlloyd40]

Hi guys am new of owning golf r after selling my r32 so had the car a few weeks runs great was about to use the car to go shopping and the car struggled to start once started was fine for the day checked the voltage for the battery I believe it was around 12.48 left it over night was about 12.38 and started no problem this time

Welcome to the forum.

 

[The Fed]

Good advice to clean the terminals on an older car. If they're clean your battery might be failing.

 

[Al_in_Philly]

My 2015 R's battery gave out about 4 months ago--almost exactly 5 years to the day after picking it up from the dealer. I had about 28,000 miles on it then. 5 years on any battery is a heck of a long time.

 

[reallypeacedoff]

My 2015 R's battery gave out about 4 months ago--almost exactly 5 years to the day after picking it up from the dealer. I had about 28,000 miles on it then. 5 years on any battery is a heck of a long time.

You did well! Mine died at 26 months. My next one died about 2 months ago, so it lasted about 32 months. Bought an OEM from the dealer as they have 36 month 100% warranty and then pro rate for 24 months after that. My car on the first battery was always very close to my key (<30 feet away). Since I have moved—and my key is out of range—my battery has lasted longer. Something to think about if you keep your keys close to your vehicle, definitely seems like they are in constant communication with each other.

 

[jimlloyd40]

You did well! Mine died at 26 months. My next one died about 2 months ago, so it lasted about 32 months. Bought an OEM from the dealer as they have 36 month 100% warranty and then pro rate for 24 months after that. My car on the first battery was always very close to my key (<30 feet away). Since I have moved—and my key is out of range—my battery has lasted longer. Something to think about if you keep your keys close to your vehicle, definitely seems like they are in constant communication with each other.

So keeping the key fob out of range helps the battery in the car last longer? I knew it helped the key fob battery but I never thought of the car battery.

 

[reallypeacedoff]

So keeping the key fob out of range helps the battery in the car last longer? I knew it helped the key fob battery but I never thought of the car battery.

I think they just have a constant communication with each other if they are in close vicinity. But yes, battery in my fob was being replaced every 9 months or so. Haven't replaced in a couple of years.