How do I fix a coolant leak

Try this manual 4 cylinder diesel engine 1 9 engine VW

Assume you mean the engine oil level on the dipstick is getting higher?

I would be surprised if it is hydraulic oil (unless you know different) but I suppose diesel fuel is a possibility though it is many years since I have heard of such a thing, especially if the engine is otherwise running smoothly.
The last time I saw that was on a small diesel engine with a conventional dpa type injection pump driven by oil-fed gears. The pump had sprung a leak and begun to fill the engine. There was no mistaking the strong smell of diesel...

An internal coolant leak can have the same effect but without the smell of fuel.

Part of the water pump bypass connection?
Need to use an inspection mirror,engine off but warmed up.
Possible o ring failure.
Extreme diesel engine vibration shakes a lot of things loose!
Pink fluid is used on late model Toyota's. Honda's is blue.
Universal coolant available,now.

is this engine a direct injection or indirect ,sorry to ask but iam in europe and never seen this engine ,if its a direct injection then it cannot leak but if its indirect then yes you could see a leak but it would go into the engine as well ,because the the injector and the heater are in a side chamber in the actual cylinder head ,its called a ricardo comet type cylinder head layout but is only used on smaller lightweight diesels .

Take it to a shop and ask them to put it up on a lift, take a look and figure out where it is leaking. They can tell you and also how much to fix.

Priority Action Part Type Cause 1 Inspect Head Gasket Head Gasket Leaking Coolant into Cylinders. 2 Inspect Engine (DOMESTIC ONLY) Cracked Cylinder Block Leaking Coolant into Cylinders.

i'm getting "internal control module keep alive memory?" for fault p0603. which i think has nothing to do with using coolant. i assume you're finding no leaks, so it's leaking somewhere you can't see. does it smell of antifreeze in the interior? is the carpet wet? the heater core might be leaking into the interior. there could be a slow leak on the top of the engine and it's boiling away before it has a chance to pool. fill your reservoir fully. let the engine get hot. inspect for steam in the engine compartment.

Hey,
I'll assume for now that the blower motor is working.
Now, there are a couple of things things to check.
1. Easiest thing to check is the coolant level. If the coolant is low, your heater will not give any warm air. Hopefully this is the problem as it's the easiest fix.
2. The thermostat. When the engine and coolant are hot, your top rad hose should be hot as well. See if the rad hose is hot to the touch. If it isn't, your thermostat might be faulty. It's a fairly easy and cheap fix as well.
Good luck.

If this is a gas engine You have probably blown a head gasket. If its a diesel engine of later years 03 or later you probably have an injector failure and or a injector pump failure. I hope this helps.
Thank You,
Roy

I think the labor to check out the leak is too much.
If a qualified tech. pressurizes the system, he should tell more or less where it's coming from.
Could be freeze out plug.