Light brown sludge in engine coolant

chrisnka · **June 02, 2016, 10:52:44**

Hi all,

Just come across this today on my 09 comfort crdi 1.6 anyone had this before or has previous owner tried to cover up a fault?

Chris

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Dazzler · **Reply #1: June 02, 2016, 10:53:56**

Sounds like it didn't get the coolant changed as per schedule!

chrisnka · **Reply #2: June 02, 2016, 10:54:52**

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Dazzler · **Reply #3: June 02, 2016, 10:57:07**

Not a good sign IMHO!

chrisnka · **Reply #4: June 02, 2016, 10:58:56**

Do you think the best thing to do is get it flushed?

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chrisnka · **Reply #5: June 02, 2016, 11:00:33**

Still covered under our 3 months warranty, or do you think it would be best getting our money back?

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Dazzler · **Reply #6: June 02, 2016, 11:04:56**

Might be ok, but I would get an independent inspection by a friendly mechanic.

If you decide to keep it, I would get it flushed. Hopefully it doesn't have a blown head gasket!

Looks almost like oil in the water...

chrisnka · **Reply #7: June 02, 2016, 11:05:47**

It is OK on engine temperature, we travelled from Yorkshire to Scotland on Monday and all seemed ok.

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chrisnka · **Reply #8: June 02, 2016, 11:06:48**

Right ok, think we will take it to a garage when we get back, would head gasket normally be covered under a warranty?

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Dazzler · **Reply #9: June 02, 2016, 11:09:20**

Have you got a full service record? It should be as long as they don't try and pin it on you.

Bit hard to diagnose from 12,000 miles away.

chrisnka · **Reply #10: June 02, 2016, 11:13:21**

It has full hyundai service history apart from the last one which was done by the local garage we bought it from. I think I will get my mate who is a mechanic to have a look when we get back. It does have a slight smell of exhaust gases(I think)

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asathorny · **Reply #11: June 02, 2016, 11:15:28**

I am no mechanic/technician but over the last 50/60 years have been obliged to get stuck in a do my own car work more often than I would have liked....

Based upon that limited experience I would instantly suspect contamination either from a leaky head gasket, or from somewhere else???

If you flush the cooling system you'll be flushing away the evidence.

I would take it back, sooner than later.

good luck

Dazzler · **Reply #12: June 02, 2016, 11:19:41**

Quote from: chrisnka on June 02, 2016, 11:13:21

It has full hyundai service history apart from the last one which was done by the local garage we bought it from. I think I will get my mate who is a mechanic to have a look when we get back. It does have a slight smell of exhaust gases(I think)

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That can be a sign of a leaking head gasķet...

chrisnka · **Reply #13: June 02, 2016, 11:19:49**

We will be taking it back next Monday when we are back. Thanks for the advise guys. I'll be keeping an eye on the temperature gauge until we are back

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chrisnka · **Reply #14: June 02, 2016, 11:21:15**

There's no signs of oil around the engine bay or near the headgasket that I can see, obviously doesn't mean there isn't an issue there though

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Dazzler · **Reply #15: June 02, 2016, 11:25:03**

Good luck with it anyway. Bit of a worry, but may be ok.

chrisnka · **Reply #16: June 02, 2016, 11:29:43**

Thanks, just another obsticle to overcome. Will let you know how we get on when we get back home next week

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Dazzler · **Reply #17: June 02, 2016, 12:10:07**

diesel1984 · **Reply #18: June 02, 2016, 13:02:18**

Looks like someone mixed green with pink or red coolant. You will need to clean this mess and put right stuff in.
Your car takes green type coolant.

eye30 · **Reply #19: June 02, 2016, 14:25:11**

Quote from: Dazzler on June 02, 2016, 11:19:41

Quote from: chrisnka on June 02, 2016, 11:13:21
It has full hyundai service history apart from the last one which was done by the local garage we bought it from. I think I will get my mate who is a mechanic to have a look when we get back. It does have a slight smell of exhaust gases(I think)

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That can be a sign of a leaking head gasķet...

Remove the engine oil filler cap.

Is the underside of the cap just oil or is it whiteish sort of gunge?

The latter i think may show signs of gasket failure.

Also, what colour is the end of the exhaust pipe?

Depending on this colour it may indicate engine issues

eye30 · **Reply #20: June 02, 2016, 14:28:07**

Just another thought.

If the cap has failed, i.e. presure failure, then it will leak and on drying leave that mess.

chrisnka · **Reply #21: June 02, 2016, 14:59:48**

The end of the oil cap is just oil as I checked earlier. I will check the exhaust when I get back to the car and let you know

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asathorny · **Reply #22: June 02, 2016, 15:02:55**

Quote from: chrisnka on June 02, 2016, 14:59:48

The end of the oil cap is just oil as I checked earlier. I will check the exhaust when I get back to the car and let you know

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The mystery deepens.... can't wait to find out what's caused it

chrisnka · **Reply #23: June 02, 2016, 15:13:46**

The rubber seal did look a bit worn but there's no sign of it leaking out of the cap area. Will be back at the car in a couple of hours

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sundiz · **Reply #24: June 02, 2016, 16:28:55**

Quote from: chrisnka on June 02, 2016, 11:00:33

Still covered under our 3 months warranty, or do you think it would be best getting our money back?

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If it is just poor service (mixed wrong coolants etc) I would ask the dealer to do a flush and use right coolant. If it is oil that is mixed with coolant, I would want my money back.

asathorny · **Reply #25: June 02, 2016, 16:45:14**

Have you dipped your finger and tested how slippy it is ??? just a thought

chrisnka · **Reply #26: June 02, 2016, 17:06:37**

End of exhaust is black on inside as I would expect, fine on the outside.

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chrisnka · **Reply #27: June 02, 2016, 17:12:13**

Quote from: asathorny on June 02, 2016, 16:45:14

Have you dipped your finger and tested how slippy it is ??? just a thought

It is slippy

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asathorny · **Reply #28: June 02, 2016, 18:04:20**

Quote from: chrisnka on June 02, 2016, 17:12:13

Quote from: asathorny on June 02, 2016, 16:45:14
Have you dipped your finger and tested how slippy it is ??? just a thought
It is slippy

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Oops

PhireSideZA · **Reply #29: June 02, 2016, 20:24:50**

What does the sludge smell like? Oil should have a distinct smell. That looks a lot like a car I once saw where the owner neglected to use antifreeze with brackish tapwater. A few months down the line it looked almost exactly like yours does