M13A engine overhaul service after 55 000 miles

I bought a Jimny with standard M13A VVT engine (with air conditioning and power steering) which has traveled 91 000 km (that is around 55 000 miles if I am correct).

The previous (1st) owner said that he has never done anything to the engine except changing engine oil, oil filter and air filter.


Now I want to do a proper regular maintenance, and I am wondering what should be done at this mileage.

I read the user manual and it says that right now is the time to change the following:

1. Engine oil, oil filter and air filter (nothing special)
   
2. Both driving belts
   
3. All four spark plugs
   
4. Engine coolant

However, I have not found any information if there is anything else to change at this mileage.
What about any belt tensioners (which ones), pulleys, water pump, sensors, gaskets, anything else?

Should also any engine part be preventively replaced at this mileage as a sound practice from general community experience?


I also intend to change all fluids in the vehicle (differentials, gear box, transfer box, brake, power steering, air conditioning) and the cabin filter.

Diff oils generally do not need changing unless the car has done a lot of off roading into puddles. Just level checks but again if no leaks then they should be good. Remember the fill and drain plugs need a 10mm square bit and they are very tight. 55000 miles is low for major component changes in my opinion and brake fluid and coolant can be checked for condition. Spark plugs nowadays are designed to last a lot longer than the old days with fuel injection they do not get flooded and such too. The driving belts can be visually inspected for fraying but the bottom pulley is something that can delaminate on these. Unfortunately it is not always evident on a visual inspection though. What year is it by the way?

Mine had 65k miles on it and a good service with Mobil one has made it feel years younger, the vvt has come to life.

sniper

The car was made in 2013.

What is the part number or some other specifications of that bottom pulley? The drive belts are in bad condition and need replacing. So what's with the water pump and some other related parts when doing the belts?

The water pump and tensioner are inspect and replace if faulty items, so unless you suspect a problem i would just replace the betls and service as normal. 55k is low miles and the 1.3 VVT is a quality engine. the belts may have perished over the years a bit. I would expect a 2013 to be on original belts probably, which should have been replaced by now really.

If the new belts show excessive wear rate then i would look at the tensioner and the crank pulley. Martin sells new bearings, etc so the tensioner can be rebuilt and the crank pulley replaced. The water system is very strong on these motors also

I would do exactly as you planned but with a brake fluid change too as it's cheap and easy and you know when you did it.

Water pumps don't cause issues on these cars.

I'd also check the colour of the power steering fluid and if not cherry red, replace it too.

Kirkynut

Kirkynut