Thread: D2a issues

Oil light flickering is something you need to get sorted asap. Could be as simple as a oil pressure sender unit. Or as critical as a worn oil pump or sticking pressure relief valve. You don't want to have that engine running without oil pressure. Oil pump bolt slightly loose also.

as far as I know it has 5w30 engine oil which I think is a bit low on the oil
required for Australia imo

5W30 full synthetic is recommended fro TD5 for all temperatures including up to 50C, V8 says 40 over 40C.

Regards Philip A

The owners manual says:

Engine oil - Diesel engines
Use a 5W/30, 5W/40, 5W/50 or 10W/40 oil meeting specification ACEA: A1 and B1, and having a
viscosity band recommended for the temperature range of your locality.


If we look at the old specifications:

ACEA A1/B1-10
Overview
ACEA A1/B1 oils are Mainline lubricants. They are designed for use in gasoline and light duty diesel engines that have been specifically designed to use a low viscosity oil. ACEA A1/B1 oils are typically used in older vehicles as they do not provide the minimum performance demanded by the latest OEM specifications. These oils may be unsuitable for use in some engines.

ACEA A1/B1 oils are typically low HTHS (≤3.5cP) SAE 5W-30 based on API Group III base oils.

API Groups of base oil

Almost every lubricant used in plants today started off as just a base oil. The American Petroleum Institute (API) has categorized base oils into five categories (API 1509, Appendix E). The first three groups are refined from petroleum crude oil. Group IV base oils are full synthetic (polyalphaolefin) oils. Group V is for all other base oils not included in Groups I through IV. Before all the additives are added to the mixture, lubricating oils begin as one or more of these five API groups.

Group III

Group III base oils are greater than 90 percent saturates, less than 0.03 percent sulfur and have a viscosity index above 120. These oils are refined even more than Group II base oils and generally are severely hydrocracked (higher pressure and heat). This longer process is designed to achieve a purer base oil. Although made from crude oil, Group III base oils are sometimes described as synthesized hydrocarbons. Like Group II base oils, these oils are also becoming more prevalent.

Most Semi Synthetics are a higher standard now with the benefit of both Mineral and Synthetics.

As explained to me by a Land Rover Expert Mechanic.

If you have a TD5 check the wiring loom that runs around the rear of the head.
The conduit gets brittle with time and heat.
It has a single wire in it the goes to the oil pressure switch that it located under the turbo to the rear of the spin on oil filter.
Don't worry about the spare wire that runs off the switch, it goes nowhere.
With a bit of luck it may just be rubbed through and causing the light to flash.

The two hoses may be the breather pipes for the gearbox and transfer case.
They are plastic not rubber.

Not to sure I can help with the 3 lads.
It may need to have a Nannocom or similar hocked up to see what the code is.

Yeah got a nanocom ordered
I was looking at those wires today and moved some condute around and light has stoped but still beeps on start up if its been sitting for a bit
3 amigos hasent reared there head again