My 1.4 Polo makes a funny noice when driving in 5th gear. It have 75 000km on the clock and went throw all the services.

SOURCE: Problems with gear box

I had the same problem, have the clutch fitted, but ask the garage to look at your gear linkage too.

SOURCE: 5th gear with 1996 VW Polo

hi mandy
im dave
if it only revs when you put it in 5th gear then it is not in fifth gear. it may look like it but it is not. try moving the gear selector from fourth into neutral releasing the clutch fully then applying the clutch and initiating fifth gear. if that does not work try placing it into one of the other gears first without releasing the clutch and then selecting fifth.
you should be fine driving in four gears as long as you dont travel on the audobahn or at speeds like your on the audobahn. Just watch your redline. try not to go past it. i think it is actually better for your car to drive at higher revolutions than lower as it cleans out your combustion chamber of carbon. on the other hand it is ******* your engine to drive in the red line constantly.
but 3000 rpm in 4th gear probably has you driving 130km/hr (82mph) which should be sufficient and your redline probably does not start until somewhere between 4-5k

SOURCE: making noise like gear is rubbing something in 5th

Drain the oil out of your manual tranny into a CLEAN bucket. Run your fingers through it. Does it look like you've got splotches of silver paint? If so, your tranny's bearings and/or gears may be wearing out.

SOURCE: 5th gear went out yesterday

time to put a new tranny in that jet most of the time it costs to much to repair it then replace it i have done may tranny rebuilds and replacements to me i would just tell you to replace it at least you will get a better warrentee and stuff

SOURCE: my service engine light came

Hi- You need to take your vehicle to Advance Auto. Ask for a code check. Come back and tell me the code. You may be able to fix it right there.