335d fuel consumption at high motorway speeds?

[rassi]

Considering making the move to a 335d (Touring or Coupe), mainly due to the fact that I can save about €3000 in road tax and fuel costs, compared to my E39 M5

However, this is under the assumption that a 335d at higher motorway speeds (Belgium/France/Germany) of about 160 kph would be able to crack 37-40 mpg?

The M5 would be about 21 mpg at the same speeds.

Anyone had experiences with these speeds, that I understand would be slightly more than normal UK speeds?

[phumy]

I can confirm toxicnerves findings, i have an E90 335d and i get 42mpg average on motorway and town, but if its pushed then it does drop but i have never seen it below 36mpg but as you know we can legally get 160kph here in UK

[rassi]

Thanks for the input so far!

Really a bit of a head/heart decision, as I recently spent €1400 on brakes, suspension and a service + the M5 has been faultless for the 4 years and 80.000 km I have had it.

Just the mathematics of it:

Annual road tax:

M5: €2200
335d: €700

Fuel (based on 15.000 km per year):
M5 (assuming 7,4 km/l): 2000 litres at €1,45 : €2900
335d (assuming 13 km/l): 1150 litres at €1,2: €1380

However, to register the 335d I would pay €3500 (one off tax) and probably have to stomp up €15000 (my 2002 M5 with 188.000 km is worth about €15000 and a good 335d M Sport from BMW would be about €30000 for a 80.000 km example).

So first year saving will go to register the 335d and then it will start making sense. Decisions, decisions...

Insurance is the same.

[briers]

My 335d coupe did 47mpg when i drove it back after picking it up.

That was 90% m-way/dual carriageway. It was raining so speed was 65-70 and there was some slow moving traffic for a bit too. So a pretty economical journey really.

Typically it does about 43mpg combined at "normal" m-way speeds with overtaking etc.


And daily, my commute which is town and A roads always returns 40mpg over a full tank.


But if you drive in DS mode probably mid 30's. Not sure if the coupes are more economical because of the shape but it does seem surprisingly frugal for what it is, i budgeted for about 34mpg.

[phumy]

rassi said:

Thanks for the input so far!

Really a bit of a head/heart decision, as I recently spent €1400 on brakes, suspension and a service + the M5 has been faultless for the 4 years and 80.000 km I have had it.

Just the mathematics of it:

Annual road tax:

M5: €2200
335d: €700

Fuel (based on 15.000 km per year):
M5 (assuming 7,4 km/l): 2000 litres at €1,45 : €2900
335d (assuming 13 km/l): 1150 litres at €1,2: €1380

However, to register the 335d I would pay €3500 (one off tax) and probably have to stomp up €15000 (my 2002 M5 with 188.000 km is worth about €15000 and a good 335d M Sport from BMW would be about €30000 for a 80.000 km example).

So first year saving will go to register the 335d and then it will start making sense. Decisions, decisions...

Insurance is the same.

You assumptions of the fuel consumption of the 335d is a little bit wishful thinking as 13km/l equates to 58mpg..... as we have been saying a good average is around 40mpg therefore it should read something like 9km/l.(given that there is 4.5ltr per gallon) Sorry if that pisses on your fire a bit

[rassi]

phumy said:

rassi said:

Thanks for the input so far!

Really a bit of a head/heart decision, as I recently spent €1400 on brakes, suspension and a service + the M5 has been faultless for the 4 years and 80.000 km I have had it.

Just the mathematics of it:

Annual road tax:

M5: €2200
335d: €700

Fuel (based on 15.000 km per year):
M5 (assuming 7,4 km/l): 2000 litres at €1,45 : €2900
335d (assuming 13 km/l): 1150 litres at €1,2: €1380

However, to register the 335d I would pay €3500 (one off tax) and probably have to stomp up €15000 (my 2002 M5 with 188.000 km is worth about €15000 and a good 335d M Sport from BMW would be about €30000 for a 80.000 km example).

So first year saving will go to register the 335d and then it will start making sense. Decisions, decisions...

Insurance is the same.

You assumptions of the fuel consumption of the 335d is a little bit wishful thinking as 13km/l equates to 58mpg..... as we have been saying a good average is around 40mpg therefore it should read something like 9km/l.(given that there is 4.5ltr per gallon) Sorry if that pisses on your fire a bit

I think my conversions are correct:

13 km/l (= 7,6 litres/100 km) = 36,8 mpg
7.5 km/l (=13,45 litres/100 km) = 21 mpg

Agree, however, that even with this saving in fuel and annual road tax, the cost of changing would equate to quite a bit of 98 octane petrol for the old M5!

[phumy]

Rassi, you of course are correct, i must have had a blonde moment there, sorry....


apaerbag:

[mybrainhurts]

rassi said:

Annual road tax:

M5: €2200
335d: €700

However, to register the 335d I would pay €3500 (one off tax)

Bloodeee Hell....

Is this what happens when the Green brigade gets influence in government...?

[rassi]

mybrainhurts said:

rassi said:

Annual road tax:

M5: €2200
335d: €700

However, to register the 335d I would pay €3500 (one off tax)

Bloodeee Hell....

Is this what happens when the Green brigade gets influence in government...?

Well, yes (except Belgium hasn't had a government since the election in June, and will likely not get one before earliest January 2011, if there is still a country by then).

Car prices are quite cheap here, but the taxes on anything remotely powerful are quite alarming:

Any new car with more than 211 bhp or larger than 3 litre will be slapped with a registration fee of 5000 euro. This amount goes down every year by 10 %, but even then a 3 year old car in this category would be said 3500 euro to register for the next owner. Annual road tax for a 3 litre petrol or diesel: 700 euro. 5 litre engine: 2200 euro.

This means that the vast majority of all cars are below 2 litres (road tax 350 euro) and 163 bhp (1250 euro to register)...

[phumy]

Just did a little fuel consumption test in mine, travelled 30 miles down the M5 to Taunton at a steady 70mph and got 49mpg, I got 39mpg on the way back and its pretty flat all the way along.....

So at least you know what you should get at our national speed limit on the M ways.