Questions For CDI Owners
Thanks in advance.
For those who have a E270 or E320 CDI diesel. What oil are you or your dealer using? Do you have any excessive oil usage issues? Do low viscosity oils reduce turbo lag? Are you supposed to allow the turbo to cool off before shutting the engine down?
BudC
I have an E320 CDI. I have purchased Mobil1 fully synthetic oil but so far I've not had to use it. As far as I'm aware there is no specific guidance about letting the turbo cool before shutdown.
BudC
I have an E320 CDI. I have purchased Mobil1 fully synthetic oil but so far I've not had to use it. As far as I'm aware there is no specific guidance about letting the turbo cool before shutdown.
Does your car have a particulate(soot) trap? U.S. cars don't have it but I've been told that if you had it that low ash oils should be used.
No, I think they only have them on the E270 CDI I don't think they have got as far as the E320CDI.
Why so much concern about the CDI. In Europe diesels have progressed so much because we have to pay so much for fuel. Diesels have probably progressed much more than petrol here. Everyone is getting them, especially company car owners due to the tax implications with emissions.
The CDI engines are great, low maintainance, fast, no smell. Still some clatter though and there is a turbo lag. On my C270CDI before this, outside of 1 service only added 1 litre of oil in 32000 miles.
The only thing is that I do not know how good the quality of your fuel is. With what your paying for petrol, why buy a diesel anyway.
- Fuel Cost Savings: @20k mi/yr expect to save $700-1000 year at current prices. More if prices rise. About 8% of car ownership costs.
- Reduced maintenace costs? More problematic, however there is no ignition, although there is still an ECU and sensors.
- Is cool to have something few others have.
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We have a 530, and the E320's engine seemed coarse by comparison. The CDI doesn't (and apparently the 320 is the least smooth MB CDI).
In day-to-day driving, both cars cruise at low revs. That puts the CDI at its power peak, while the petrol engine needs a down shift and some time to rev. That makes the CDI feel faster.
We have a 530, and the E320's engine seemed coarse by comparison. The CDI doesn't (and apparently the 320 is the least smooth MB CDI). I disagree. The 6th cylinder makes the E320 CDI smoother than the 220 and 270. From previous experience I thought that the E39 530d was a comparible engine in terms of refinement.
In day-to-day driving, both cars cruise at low revs. That puts the CDI at its power peak, while the petrol engine needs a down shift and some time to rev. That makes the CDI feel faster.
We have a 530, and the E320's engine seemed coarse by comparison. The CDI doesn't (and apparently the 320 is the least smooth MB CDI).
In day-to-day driving, both cars cruise at low revs. That puts the CDI at its power peak, while the petrol engine needs a down shift and some time to rev. That makes the CDI feel faster.
Your posts on the CDI always give the impression that you do not own one. Please accept my apologies if this is not the case.
The 320CDI does NOT feel faster than the petrol equivalent. It IS faster (quicker). Your knowledge of older generation diesel engines is admirable, but the common rail direct injection system and other improvements have now given the diesel engine a similar performance to its petrol equivalent. Ford are now producing a 2 litre diesel that is now outperforming its 2 litre petrol counterpart.
Your statement about the 320CDI not being as smooth as the 5 cylinder 270CDI Is again something I find difficult to accept. I have not driven the 270, but I have had one ticking over alongside our 320CDI. Both engines are very quiet (for diesel engines) but the six cylinder engine does sound 'smoother'.
I was under the impression that the 320 actually had a particulate filter to comply with EU V poluution (wish I had a spell checker) regulations. (However I accept what 'Fastbuck' has to say on this issue.) I have also read that US versions will not have this filter because of the very poor standard of the fuel.
Whew, Having said all this please do not think I am a died in the wool 'diesel head'. I was the main activist against purchasing diesel powered vehicles with my previous employer simply because of the very poor performance figures.
However we ALL must accept technological progress. 'Starting handles' are no longer supplied with cars. They now have air conditioning. And, diesels can be very quiet, fast, and even out accelerate there petrol equivalent.
Regards,
John
Overcast Torquay
Last edited by glojo; May 30, 2004 at 04:31 AM.
I am an Autocar subscriber, and the comment on 270CDI vs 320CDI has been repeated by them many times, recently in an E320 CDI vs 530d vs S-type 2.7 CDI test and a long-term test of an E320 CDI estate (they were also critical of the RHD driving position).
The feel vs numbers thing is also where MBs numbers are. However, IMHO the 320 gas is a rather weak engine. And the gap between European rating is 224bhp for the diesel vs 221bhp for gas. In the US it is 215bhp for the gas and 201bhp for the diesel. I don't know whether the difference is from differences in the tests or from differences in the US vs. Euro configurations.
All that matters (assuming you can spin the tires at the start) is HP under the curve of the rev range you are operating under. Since you apparently can't hold the MB against brake on the launch, that low end torque (which is also HP at those engine speeds) produces a big low end advantage.
Physics is physics, and the torque at the rear wheels is a function of HP not torque at the flywheel!
Don't own, have ordered.
I am an Autocar subscriber, and the comment on 270CDI vs 320CDI has been repeated by them many times, recently in an E320 CDI vs 530d vs S-type 2.7 CDI test and a long-term test of an E320 CDI estate (they were also critical of the RHD driving position).
I would be very grateful if you could possibly give more details about the criticism of the RHD driving position. What were they complaining about???
Sorry about my negative attitude as I am a great fan of this site. I am just very curious about the information you have kindly posted.
Regards
John
Showery Torquay
of your 320 cdi. I have one coming july .
Turo lag? Power,? reliablity? anything you could car to add would be great.
I have moved from a BMW 530 petrol to my CDI. This is my first diesel and was verging on paranoid about the "diesel noise". I have been perfectly surprised and believe that as soon as you touch the gas pedal and take the revs above the idle spped you cannot tell that it is a diesel engine inside or out.
I have nothing to report about turbo lag. In fact I don't even believe it exists. I think the issue is more the hesitation in the gearbox kicking down. For the doubters out there, use the steptronic function on the box. There is no delay, this thing flies like the proverbial dog doo off the shovel.
I have had a couple of very minor electrical glitches since I got my car in March. These were quickly resolved and have not shown up again since.
I would have no hesitation in reccommending one of these to my closest friend!!!
M
I would have no hesitation in reccommending one of these to my closest friend!!!
It is such a shame that the new 5 series looks so ugly because that vehicle is a flyer.
I am now watching Top Gear with Clarkson reviewing the Audi A8 twin turbo charged V8 4ltr diesel 0 - 60mph in 6 seconds. He is about to drive all the way from London to Edinburgh AND back on just one tank of diesel (19.8 gallons 800 miles). I will watch the program before I post this.
Unbelievable, the car actually completed the journey. What an acheivement.
So NO ONE, but NO ONE accuse me of being bias towards one brand of vehicle.

Regards,
John
Showery Torquay
The 270CDI is available in the C and E-class. Yes UK Autocar, was there another?
"""E320 CDI vs 530d vs S-type 2.7 CDI test"""
Sorry, if I misunderstood you.
Goodnight, (11-30pm)
John
Dark Torquay
There is a new Jaguar S Type diesel. Gets good reports. Might get a test drive to see what it is like.
However I have managed to find this information,
"""The revised 2004 S-TYPE visually enhances a car that was substantially updated in 2002 and the introduction of an-all new, 2.7 litre V6 twin-turbo Diesel engine marks yet another milestone in the evolution of Jaguar's S-TYPE premium executive saloon. Embracing diesel in the new S-TYPE is a natural progression for Jaguar, with diesel engines at last able to deliver the refined performance that customers of the marque demand.""""
The engine certainly sounds impressive, are you actually saying that this car is now being produced??
If so, why is it not listed on the Jaguar site?
This vehicle however does NOT have the Mercedes-Benz 270CDI engine and I quite simply do NOT accept the alledged Autocar report stating that the 'S270CDI' has a 'smoother' engine than the E320CDI. Yes, the vehicle can be described as smoother, but certainly NOT the alledged engine (I am not even convinced that this engine is actually fitted into the Mercedes-Benz S class) There is no such beast that is imported by Mercedes-Benz into the UK.
I am also perplexed by the criticism of the RHD variant????
Me thinks that perhaps I have swallowed the hook, worm and sinker

Regards,
John
Very painful Torquay
Hi
There is a writeup in the Top Gear magazine
I was very disappointed with the performance of this vehicle. On paper with twin turbo's it should give the 320CDI a run for its money.
Both Fastbuck,myself and more importantly countless reviews ALL sing the praises of our engine, but here is the Jaguar figures:
"Engine: 2.7-litre twin-turbo V6 24v 206bhp
Performance: 0-62mph in 8.1 seconds, 143mph maximum speed"
Thanks for the information.
Suffering John
Overcast Torquay
Thank you very much indeed for the quick response. I wonder if the Top Gear vehicle was a 'pre-production model' and why is it NOT listed on Jaguars site??
I was very disappointed with the performance of this vehicle. On paper with twin turbo's it should give the 320CDI a run for its money.
Both Fastbuck,myself and more importantly countless reviews ALL sing the praises of our engine, but here is the Jaguar figures:
"Engine: 2.7-litre twin-turbo V6 24v 206bhp
Performance: 0-62mph in 8.1 seconds, 143mph maximum speed"
Thanks for the information.
Suffering John
Overcast Torquay
I would still rather have mine, but I would be interested in how the Jag stacks up value for money wise.
Check the Jag website again, there is a special on it.
Check the Jag website again, there is a special on it.
The only vehicles they list are:
S-TYPE
S-TYPE 2.5 V6 S
S-TYPE 2.5 Sport
S-TYPE 2.5 SE
S-TYPE 3.0 Sport
S-TYPE 3.0 SE
S-TYPE 4.2 Sport
S-TYPE 4.2 SE
S-TYPE R
S-TYPE Plus
No 2.7 diesel listed.
I totally agree about comparing like, with like. 270 - 270
The report on Top Gear did not in my opinion do the Jaguar any favours.
""As long as there are at least 1500 revs on the dial, the V6 will pull, if not with any real alacrity. You need to have at least 2000rpm on the clock before it'll accelerate convincingly, as the two blowers cut in, taking the car up to the 4500rpm """""
Hopefully the quality, reliability of Jaguar will improve now that Ford have taken them over, but I have had way too many bad experiences with the marque.
Regards,
John
Drizzly Torquay



