[magnuz]

To do a voltage drop test on battery cables. Set the multimeter on the lower settings volts DC.There are various points where you can test, but to start with, put the red probe on the positive battery post & the black one on the cable attachment stud on the starter motor & crank the engine.Ideally, the meter should give a zero voltage reading, but any voltage indicates some resistance, anything above 0.3 volt probably needs attention. You can also do this on the alternator terminal with the engine running to see if you lose any voltage whilst charging. To check the negative cable, reverse the cables & do a similar test from the battery negative post, & engine block & the body earth. You may need to disconnect the crank sensor to stop the engine firing up while you do the test, or you may not get a stable reading, also get someone to crank the engine, while you use the meter. There are various Youtube videos that probably demonstrate the procedure better than i can explain it

The radiator bottom hose clip is known for corroding & failing. replace it, preferably with a stainless steel clip.