370z roof won't move warning light on

scottishpaul

Roof failed on our 2010 370 Z Roadster (57k) this weekend. Checked the usual suspects: battery, fuses, truck closed - so will take a look at the wiring harness for breaks and insulation cracks. Really not happy as the extended warranty just ended!

Any advice/coaching welcome, as well as any recommendations for a good alround mechanic to help in South Orange County.

bunk

When you say it failed, what exactly happened? Roof is closed and wont open, roof is open and wont close, roof partially opened or closed and just stopped?

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scottishpaul

By failed I mean - roof is down and wont go up - metal cover opens, but roof does not even attempt to come out of housing.

SouthArk370Z

Is there a switch that tells the car that the cover is open? If so, that's the first thing I'd check.

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bunk

What Southark said. Id also try to give it a little yank while someone actuates the roof switch. Could just be as simple as tight/rusted hinges on the top.

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scottishpaul

Thanks for the suggestions guys - will give it a shot

OldGuyFla

Scottish

Just is case you haven't looked here, it might help https://www.nicoclub.com/FSM/370Z/Coupe/2010/RF.pdf


Dan

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scottishpaul

Well, after a couple of months of playing around and getting very educated about this problem, I still have an electric/power roof that doesnt work! As well as the associated problems of the visible and audible warning light/buzzer, and the electric trunk release not working (all because the CPU thinks the roof is in mid cycle).

I took it to a local convertible specialist who looked at a few items and ended up taking it into Nissan for a CPU diagnostic (costs ~$250 FYI). The diagnosis from Nissan (dealer) was an error at the "5th bow assembly". Nothing mechanical, but either a broken wire in the harness somewhere, or a problem with the CPU itself. Either way, the recommendation from Nissan was a complete replacement roof kit (roof, harness, hydraulics, CPU, etc). Estimate was for $15,850 plus $1,200 labor. Needless to say I am not spending $18k on a 2010 car!

Nissan USA were particularly useless when I raised this with them and basically said: out of warranty, tough luck. Did a little research on this one and apparently this is a known problem with 370Z cars with Nissan with apparently around 600 cases in the past 5 years. And apparently very few people go with the Nissan suggested $18k repair, not surprisingly.

Really not happy about the situation, at all!

PS - there are manual processes to: 1) open the trunk from inside the car using a key (behind the passenger seat); 2) open the hood manually using the cable release in the trunk and a socket set to release the roof up by the rear view mirror - this method is recommended by Nissan only for emergencies to open of close the roof in the event of electrical failure, but what the hell - I now have a Wrangler with a manual lift off roof and a 370Z with the same!