2005 HSE Diesel Freelander TD4 2.0 starts but is running lumpy

Check weather stripping for interference.......Silicon spray works wonders on weathersripping

Freelander TD4 diesel has a chain (mega bucks), L series diesel (pre BMW engine) has a belt (plus a small belt for the injection pump). the K series 1,8 petrol and KV6, 2.5L also have belt's.

One thing with diesels they do not like short trips and what I mean by short trips the vehicle needs to be started idle and driven for a minimal of 40 minutes 4 engine to fully heat up to prevent excess carbon build-up and if it has a lot of miles on it you are exhaust could be getting plugged up or restricted especially if it has a a catalytic converter on it if it's plugged up with suit you will get bad fuel mileage much same thing with your air intake a dirty air filter can rob you of power and fuel efficiency same thing on the exhaust side if a diesel can't breathe then it will gobble up more fuel then it needs and diesels need to have fuel treatment / injector cleaner that is meant for diesels ran through them at least every third fill up to prevent the injectors from getting clogged which will damage fuel efficiency and help prevent burning holes in your Pistons which is true with any injector gas or diesel and from my Google search of your vehicle the 3.2 L sized engine gets about the fuel mileage that you say you're getting if it's the 2.2 it should be getting 20 two 25 City and 38 to 40 Highway

how simple is this job the pipes just fit to the filter then start engine ,yes it will die but just crank engine for a max of twenty secs no more or damage may result to windings in the starter ,if it doesnt start then wait a minute or two for the heat in the starter to dissapate then try again .

take it to a diesel specialist shop
there is an idle/fuel control module on the pump that could be the fault
having the fault codes read is a good idea as well

in a word no the freelander is a uni body construction,and most freelander owners would prefer to go for the defender set up not the other way round, you would be better of looking at coil sprung hi breed kits for your s3 and maybe a mitsubshi diesel for economy.

Check the acidity with a hydrometer and as per the battery technicians recommendations do accordingly if you agree with his reasoning...sodeep

Might be worth changing water expansion tank cap these can lose water under pressure

I WILL LIKE TO SET THE TIMEING ON 2002 LANDROVER FREELANDER