Bugeye WRX DIY big service
 

Afternoon all,

Just bought my '02 Bugeye WRX and I'm going to service the crap out of it as much as I can do myself. Timing belt and all the standard service stuff are happening, new discs and pads all round, brake fluid if I'm feeling particularly thorough, I'm just after some pointers on anything I'm missing out. It's fairly standard except for a Turbo back exhaust and a remap @ around 270bhp according to a printout I have.

Timing belt, pulleys and water pump, going to buy a timing belt kit with water pump and an OE thermostat
Oil and filter, I'm thinking black filter and some decent 5w40 oil, not sure whether 5w40 or 5w30 but most things I read are pointing at 5w40
Discs and pads, no idea, but probably MTEC discs and Brembo pads are what I'm looking at, if someone could point me at some that'd be awesome
What coolant are people using?
Should I be considering anything else? How hard is it to change the spark plugs? It looks tricky!

not sure 5w40 is the right oil. 10w50 seems more popular in imprezas.

call alyn @ as performance he is the 1 stop shop for all your servicing needs and will advise you what is best.

as performance 0191 410 3770

5w40 is exactly what you want for a bug wrx,its what Subaru recommend

While you're at it, check the rocker cover gaskets as they tend to ooze over time.
I'd also recommend giving the maf a very careful clean, flush the boost solenoid with carb cleaner (search for green contacts under the steering wheel, connect these and run the ignition on without starting the car. The solenoid will click open and shut and you can flush it).
Also check the breather pipes as they can harden and crack with age.
Power steering flush/fluid change is pretty easy to do at home and can really help feel.

Oh, haven't seen anything about 10w50, would that be for engines pushing more BHP?

Thanks Cambs_Stuart I'll definitely have a look at the rocker covers. MAF is a good shout I'll have all the intake parts off to have a look in them and I'll be on the lookout for cracked hoses, just have to stop myself justifying a whole load of hoses because they're shiney!

Never even attempted changing the power steering fluid on a car, I'll have to look in to that

Access to the power steering pump is pretty good, thanks to the engine layout.
Zany did a good write up:

https://www.scoobynet.com/general-te...ing-fluid.html

And while you've got the car up, give all the rubbery bits (bushes, hoses) and drop links a good inspection. Most are pretty easy to replace and can make a big difference to how the car feels.

I need to know where to look for all those things, I reckon this service is gonna take me the best part of a week with a couple of hours a night being done! I'll have to have a good look around. I need to put the stock suspension back on because the coilovers are all creaky and uncomfortable.

Fuel Filter
Air Filter
Cabin Filter
Replace gearbox oil
Replace rear diff oil
Clean IACV

I'd run a slighter thicker oil on a 14 year old engine, due to inevitable wear, so a 10w40 fully synth.
Spark plugs just require moving some stuff out of the way - breather box, washer fluid bottle etc.

If you put a shopping list together, then contact Alyn at AS performance then he'll give you a good deal and fast service. His website isn't great, but everything else is

Hi

Yes, a 5w-40 synthetic is sensible for the engine.

https://www.opieoils.co.uk/c-656-5w-40.aspx

Out of those, the best ones are the Fuchs/Silkolene Pro S, Millers CFS/CFS NT+, Motul Sport/300V, Red Line and Gulf Competition. The Motul 8100 X-Cess, Millers XF Longlife, Castrol Edge/Magnatec, Fuchs GT1 XTL/Supersyn, Shell Helix and Mobil Super 3000 are good, cheaper alternatives.

Here are the filters that we have.

https://www.opieoils.co.uk/f/100005/...2/filters.aspx

Timing belt

https://www.opieoils.co.uk/f/100003/...ne-timing.aspx

Spark Plugs

https://www.opieoils.co.uk/f/100151/...park-plug.aspx

And lots of other bits

https://www.opieoils.co.uk/products-...r-vehicle.aspx

Cheers

Tim

Thanks Technopug, Stuart and Oilman, this shopping list is getting longer, had to stop looking at getting a full powerflex bush set as it was pushing towards 4 figures...

I'm impressed at how sensible prices are for Impreza parts having just swapped my LR Discovery for it, lol. Just seen the price of that cabin filter though Oilman, why is it so expensive!?