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Hi guys, I recently got a 2003 300gt with about 54k km on it, all pretty solid so far. One interesting thing i noticed is a wiff of coolant coming out of the vents when the heater comes on with a low fan setting. If it the heater is on but with a high fan setting/flow then the smell goes away (doesn't smell without the heater when using A/C). I am wondering whether it is the core, or just whether perhaps the first thing to try replacing is the microfilter. I haven't checked the Coolant level yet, but that is next on the agenda as well. Guess I don't want to go overboard as the heater core looks to be connected with the A/C and therefore a PITA to replace, but has anyone had a similar experience and should i just try replacing the Microfilter?

All items from my personal GTR 32. Located in Melbourne. Air conditioner cooling unit - $220 Heating unit assembly - $240 Complete blower motor and fan assembly. Working well. - $150 Transfer case originally from R33 GTR - $220 Rear seat (back and bottom). Excellent condition - $120 Cusco strut tower bars suit R32 Front and rear. Avg condition. Scratches and paint chips - $180 pair Weather strip retainers (L&R). Poor condition rubber strips, both suit restoring. Metal guides are excellent condition - $40 pair Rear wiper motor - $90 GTR floor mats. Complete set. Avg condition, usual wear, no holes - $140 set Interior carpet. Good condition. No stains, no burns. 2 small cuts for harness bolts - $120 Air con compressor, bracket, gas cylinder, and hose - $130 CUSCO springs (from Zero 2E coliovers) Cusco ID65 200 series. Spring rate: 11kg, Inner spring diameter: 65mm, Length: 200mm, Stroke: 100mm. Travelled 2000kms - $120 pair GTR 32 front grill (silver) Good condition. Centre plastic clip missing - $110 Interior rear side trims (L&R) Excellent condition. All clips in tact, no tears in vinyl - $80 pair Factory gauges for boost, water temp, battery. Fits into single din slot. Comes with loom plug - $110 Rear seat belts. Excellent condition. Barely used. Belts retracted into spool. Comes with fitting bolts - $100 pair Climate control head unit. Good condition. All buttons work. Comes with loom plug - $90 Top cowl cover Fits under front wipers. Excellent condition, no damage - $40 Complete heater / AC ducting. Full kit includes behind dash and under carpet ducts - $30 set Rear window lower outer moulding. No damage - $35 Rubber weather shields (L&R). Heavily worn but still working - $30 pair Front door outside moulds (L&R). Poor condition. Suit painting - $40 pair A-pillar trims (L&R) 3 small holes in drivers side for pod gauge fitting - $40 pair Rear parcel shelf (original). Good condition - $40 Original Nissan brake lines and used Bendix pads - $40 Nissan standard CAM gears - $40 Oil catch can. Never used. Looks about the size of 500ml - $20 Rear seat firewall plate. Avg condition. Some scratches - $35 RB26DETT oil air breathers and joins - $20 Antenna booster - 12V amplified New. Boosts weak FM radio signal (10dB gain). Problem particular to R32's where the antenna is built into the windscreen - $20 Under bonnet trim Avg condition. No damage, just needs a clean - $20 Sun visors (L&R) Avg condition. Need a clean - $25 pair Boot trim, carpet, and board Good condition. Left side trim torn slightly. Holes cut in side trims for struct tower bar. Selling as set - $25 set Rear window wiper -$20 Nissan spare jack (original) - $15 Child anchor points and brackets Fitted onto rear parcel shelf during compliance process - $15 Interior roof lining. Excellent condition. No damage - $20 Pics available for all items..