Any one have an idea where this leak is coming from? Its super slow, maybe a drop every 3 days. The interior is super dry. I cleaned the engine bay and around all the lines and drain and fluid still leaks out of that drain hole.
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Slow Leak Coming Out of Frame Rail
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Originally posted by Gk-89E30 View PostWhat does the fluid smell, look and feel like? Where along the frame rail is it? Post pic w/t wider frame for reference. Your choices are oil, ATF (power steering), condensation, or coolant
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just based off how bad the paint looks around it, I imagine it's brake fluid.
Could be a leak from the brake or clutch master cyls, either dripping down the inside of the firewall or the outside.Originally posted by priapismMy girl don't know shit, but she bakes a mean cupcake.Originally posted by shamesonUsually it's best not to know how much money you have into your e30
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Originally posted by Northern View Postjust based off how bad the paint looks around it, I imagine it's brake fluid.
Could be a leak from the brake or clutch master cyls, either dripping down the inside of the firewall or the outside.
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it could be coming from anywhere and following the rail down to the lowest point. check the brake lines including the hard lines along the rail. sometimes a rubber line will sweat before it gives out completely, they'll do it for quite some time. you want to check the hard lines to eliminate the possibility of corrosion / rust damage.
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Originally posted by 82eye View Postit could be coming from anywhere and following the rail down to the lowest point. check the brake lines including the hard lines along the rail. sometimes a rubber line will sweat before it gives out completely, they'll do it for quite some time. you want to check the hard lines to eliminate the possibility of corrosion / rust damage.
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Originally posted by Northern View Postjust based off how bad the paint looks around it, I imagine it's brake fluid.
Could be a leak from the brake or clutch master cyls, either dripping down the inside of the firewall or the outside.
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Could be between the firewall and the thick insulation mat on the engine bay side of the firewall if your car still has that.Originally posted by priapismMy girl don't know shit, but she bakes a mean cupcake.Originally posted by shamesonUsually it's best not to know how much money you have into your e30
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The only thing that is even remotely in that area is the brake/clutch fluid. I had a leak at the plastic elbow on the clutch master that would drip slowly and absorbed through the carpet before and eventually out of the frame rail before I found it. I did notice I was losing brake fluid but it was so slow I didn't think much of it. If it's not your clutch master, it could also be the brake master leaking into the booster or the lines, or the fitting to the clutch slave cylinder."I'd probably take the E30 M3 in this case just because I love that little car, and how tanky that inline 6 is." - thecj
85 323i M TECH 1 S52 - ALPINEWEISS/SCHWARZE
88 M3 - LACHSSILBER/SCHWARZE
89 M3 - ALPINEWEISS II/M TECH CLOTH-ALCANTARA
91 M TECHNIC CABRIO TURBO - MACAOBLAU/M TECH CLOTH-LEATHER
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Originally posted by reelizmpro View PostThe only thing that is even remotely in that area is the brake/clutch fluid. I had a leak at the plastic elbow on the clutch master that would drip slowly and absorbed through the carpet before and eventually out of the frame rail before I found it. I did notice I was losing brake fluid but it was so slow I didn't think much of it. If it's not your clutch master, it could also be the brake master leaking into the booster or the lines, or the fitting to the clutch slave cylinder.
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Originally posted by AmosCake View Post
Is there a drain there that would lead to the frame rail hole where my leak is coming out of?Originally posted by priapismMy girl don't know shit, but she bakes a mean cupcake.Originally posted by shamesonUsually it's best not to know how much money you have into your e30
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