silva
December 22nd, 2011, 02:48
Hi guys/ gals,
I have been a long-time reader, owned many Audis, and recently purchased an RS6. First mod was the obvious ECU flash to make the car a bit more fun to drive, so much so that I have been averaging a little over 12 MPG (Ouch!). It is a great family hauler, that's for sure.
Over the last few weeks, I have noticed on occasion a very faint smell of coolant. Just a few days ago I opened the hood and noticed a bit of steam coming through the A/C condenser. This is likely due to the fact that it was cold and raining, making the coolant leak much easier to spot. There is a pinhole in the radiator. It has never dripped on the ground, and has only gone though about 1/2 quart of coolant in the last month. Nevertheless, I want to repair this, and will likely do a second timing belt change at the same time.
So here is my question: Does the C5 RS6 share its main radiator with the 4.2 in the C5 A6? I see different part numbers in ETKA, as follows:
4B3 121 251 F - RS6
4B3 121 251 D - NA 4.2 A6.
On fleabay and many other aftermarket sites, they list the same radiator for both cars. I don't think it's right, but has anyone found out otherwise? I don't want to buy an A6 radiator to find out that it's different, but I also don't want to spend $1K on an RS6 radiator if the A6 one is the same, or nearly identical. From looking at the radiator though, it does appear that it is all metal, unlike the A6 which has plastic end tanks. Could this be the difference? Thanks in advance. Pic for hits :)
I have been a long-time reader, owned many Audis, and recently purchased an RS6. First mod was the obvious ECU flash to make the car a bit more fun to drive, so much so that I have been averaging a little over 12 MPG (Ouch!). It is a great family hauler, that's for sure.
Over the last few weeks, I have noticed on occasion a very faint smell of coolant. Just a few days ago I opened the hood and noticed a bit of steam coming through the A/C condenser. This is likely due to the fact that it was cold and raining, making the coolant leak much easier to spot. There is a pinhole in the radiator. It has never dripped on the ground, and has only gone though about 1/2 quart of coolant in the last month. Nevertheless, I want to repair this, and will likely do a second timing belt change at the same time.
So here is my question: Does the C5 RS6 share its main radiator with the 4.2 in the C5 A6? I see different part numbers in ETKA, as follows:
4B3 121 251 F - RS6
4B3 121 251 D - NA 4.2 A6.
On fleabay and many other aftermarket sites, they list the same radiator for both cars. I don't think it's right, but has anyone found out otherwise? I don't want to buy an A6 radiator to find out that it's different, but I also don't want to spend $1K on an RS6 radiator if the A6 one is the same, or nearly identical. From looking at the radiator though, it does appear that it is all metal, unlike the A6 which has plastic end tanks. Could this be the difference? Thanks in advance. Pic for hits :)