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Excuse me,

Could someone please tell me where the electrical connections and grounding points are on a 2010 (Old shape) Kia Sportage CRDI (148) 4WD? I'm really confused.

It takes forever for my Kia to crank over and start the engine after being driven, and I've been experiencing problems with it lately.

It is driveable, but there is absolutely no way I will be able to start it if I stall.

We treated the fuel and changed the fuel filter (which was a revolting experience) on Friday. The beginning has benefited somewhat from it. Although it takes a while before it starts, it does start the first time instead of requiring multiple attempts. It will activate the electric locks and unlocks the doors after a few tries to start.

The mechanic who examined the battery said it was in perfect working order, despite its age.

As a first step in ruling out potential causes, I will inspect and clean all electrical connections and grounding points.

I am in need of some guidance locating the grounding points and electrical connections, so I was hoping someone could give me some pointers.

A girl who is attempting to get as much done as she can before taking it to the garage would appreciate it in advance.

You can test the engine/gearbox earth or the engine to body earth with a jump lead connected from the negative side of the battery to the engine.

Kindly indicate the locations of the earths. So far, we have located the engine and chassis, but the battery connection is still a mystery.

While it may be the case for the Sportage, it is more common to connect the earth from the battery to the body and then the engine (and maybe the gearbox).
Try bypassing with jump leads as noublue suggests.

If my understanding is correct, the problem is probably with the fuel rather than the electrics, but it is cranking over fine but won't start.
When you attempt to start, is it possible to scan for live data and see how the fuel pressure is changing?

My partner and I both think it's fuel, but everyone keeps directing us to check the electrics. My car's operation over time drains the battery, so we suspect that's the cause.

Although I have never experienced any issues with the battery, I am dubious of the 100% battery health diagnosis. After it continued to have trouble starting, the electrical problems started around a week later.

We were a little confused about how to execute the jump lead bypass, but after talking to noublue and you, we have a better grasp of the process. We are unable to access real-time data, but considering the issues I've encountered with the Sportage, I'm considering it a worthwhile investment.

I was wondering if anyone could suggest an OBD2 scanner that would be compatible with both Audi and Kia vehicles.

Much obliged. Since my partner will be lending me a hand, I'll let him in on the secret

You mentioned that the engine is turning over, which doesn't seem like a terrible sign. However, after that, everything goes electrically crazy, suggesting that the battery might be at fault. There is no such thing as a perfectly good old battery. Assuming the engine is turning over, I don't see how a weak battery could prevent starting, but then again, who knows with today's electronics. Could be tested by hooking up an additional battery, similar to a jump starter.

We agree that it's unlikely to be a connection issue, but since everyone seems to be saying that it is, we might as well check. Even though I have never experienced any issues with it, I remain sceptical of the 100% battery diagnosis. The battery test was conducted by Halfords, so I am aware of their history of falsely certifying batteries as fine.

The thing that's most perplexing is that after starting up in the morning, I can drive 40 minutes to work without any problems, but if I stop at a shop for 5 minutes and try to restart, it won't work.

I drove my car to work on Friday, turned it off, and then tried to start it again. Unfortunately, the electrics weren't happy. I gave up and assumed I'd need a jump by day's end, but when I tried again, it started up without a hitch.

My mechanic came out on a Friday night to perform a fuel treatment and replace the fuel filter; however, my car wouldn't turn on and had trouble starting; after approximately 5 seconds, it started fine. After I turned it off, changed the filter, and applied the treatment, the car started slowly but steadily an hour later.

Since I am not accustomed to dealing with disels, I am unsure of what to do next; it still dislikes restarts.