dominic ivarra
Member
Finished the job successfully, while I was there, also replaced spark plugs. No leaks, misfires or faults. I saved a lot of money and got some knowledge. Thanks for everyone’s help
2010 lr4 coolant leak (Can’t Find) please help!!!
- Thread starter dominic ivarra
- Start date
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Bassist169
Member
That video was so helpful! Appreciate you posting it. I have had a leak that has gotten worse over time and after checking the usual culprits up front I knew it was coming from somewhere else. I knew I wouldn't luck out and have it be something easy or cheap... Do you happen to have the OEM part number by chance? Or where you sourced yours from? Everything I'm finding is around $150... seems high for a plastic pipe!
For now I just ended up taking it out and sealing it up with some hi-temp liquid gasket compound covered with hi-temp waterproof tape. Wasn't able to actually see any cracks but the drops of fluid dripping from it confirmed that it was where the failure was. Definitely not a permanent fix but should minimize how often I get a low coolant warning (I hope) Now that I've done it once I've got the procedure down and it shouldn't take more than a couple hours start to finish.
For now I just ended up taking it out and sealing it up with some hi-temp liquid gasket compound covered with hi-temp waterproof tape. Wasn't able to actually see any cracks but the drops of fluid dripping from it confirmed that it was where the failure was. Definitely not a permanent fix but should minimize how often I get a low coolant warning (I hope) Now that I've done it once I've got the procedure down and it shouldn't take more than a couple hours start to finish.
scott schmerge
Full Access Member
It’s got a sensor in it so it’s more expensive than the front crossover. I think I found mine for a bit over $100 but can’t remember exactly
Bassist169
Member
Update: so I was able to get my Audi mechanic to source the part for me from his supplier for much less than anywhere online and was able to get it the next day. Went ahead an installed it and there is no leak but now I'm still having a low coolant warning!?!?! the tank is staying completely topped off but this was not an issue prior to the leak. I took out the reservoir tank and ensured that the float was moving etc but still do dice. Any tips for how to get the light to go off? Do I need to replace the sensor?
Bassist169
Member
Already ordered one on amazon for 8$ shipped and will hopefully be here in a couple days. The videos make it more complicated than needed though. Easiest way to get extra space to move that expansion tank around and get to everything is to simply pop out the DS headlight!!!
It is a 10 minute job tops. What I did was disconnect coolant sensor, relocate the power steering reservoir by pulling it up and out of the way. Then siphon the expansion tank dry and clamp the return and feed hoses, flip tank over and snap new sensor in place and reconnect.
Bassist169
Member
Thanks for the tip, I’ve already taken it out once to see if the float was working but for swapping out the sensor I think I can probably tackle that in like 5 min going at it through the headlight opening. The fact that they just pop out with two clips after removing the front fascia makes accessing those areas a breeze!
I was more curious if anyone else had the same coolant level sensor malfunction as mine after the OP’s issue and fix? The leak is definitely fixed thanks to the OP’s info but this sensor going bad at the same time was just the icing on the cake. Easy cheap fix just more annoying than anything else after doing the hard part to learn that there’s still a red light on the cluster
For those of us like me that are not mechanically inclined and scared to muck it up and have a bigger mess on my hands, anyone knows the estimated cost to replace these (front and rear coolant cross over pipes/valves /hoses and related hardware) at a stealership or a reputed indy shop?? Any input is appreciated. Ours is a 2013 LR4 with 5.0 V8 at 120K. No leaks yet (knock on wood) but thinking of getting this done preventatively.
@k-lr4 - just had coolant pump, front crossover ( LR calls a outlet tube), thermostat and and both belts replaced with new coolant at a local indy shop in Maryland for approx. 1200 parts and labor. 2012 LR4 with 120K miles as well and all good, just preventative at this point as I will be on the road next month for a good 4k round trip.
