1998 Mercedes-Benz E-Class Gas Tank Size & Fuel Capacity
Fuel tank capacity
18.5–21.1gal · 70–80 L
The 1998 Mercedes-Benz E-Class has a fuel tank capacity of 18.5 to 21.1 gallons (70–80 liters), depending on the trim. The most common size is 21.1 gallons, used on 4 trims.
A full tank is good for roughly 463–654 highway miles or 333–485 miles around town, going by the EPA ratings.
21.1 gal · Bigger than 74% of 1998 models we list.
1998 Mercedes-Benz E-Class fuel tank capacity by trim
What changes the tank sizeTap an option to filter the table
- Powertrain
- Drive
- no difference
- Engine
All 6 trims
MPG and range are city / highway.
| Trim | Engine | Drive | Tank | Fuel | MPG city / hwy | Range city / hwy |
|---|---|---|---|---|---|---|
| E320 4MATIC 4dr Wagon AWD 3.2L 6cyl 5A · AWD · Regular | 3.2L 6cyl 5A | AWD | 18.5 gal70 L | Regular | Not rated | Not rated |
| E320 4dr Wagon 3.2L 6cyl 5A · RWD · Regular MPG 18 / 25Range 333 / 463 mi | 3.2L 6cyl 5A | RWD | 18.5 gal70 L | Regular | 18 / 25 | 333 / 463 mi |
| E300TD Turbodiesel 4dr Sedan 3.0L 6cyl diesel 5A · RWD · Diesel Diesel MPG 23 / 31Range 485 / 654 mi | 3.0L 6cyl diesel 5A Diesel | RWD | 21.1 gal80 L | Diesel | 23 / 31 | 485 / 654 mi |
| E320 4MATIC 4dr Sedan AWD 3.2L 6cyl 5A · AWD · Regular | 3.2L 6cyl 5A | AWD | 21.1 gal80 L | Regular | Not rated | Not rated |
| E320 4dr Sedan 3.2L 6cyl 5A · RWD · Regular MPG 18 / 24Range 380 / 506 mi | 3.2L 6cyl 5A | RWD | 21.1 gal80 L | Regular | 18 / 24 | 380 / 506 mi |
| E430 4dr Sedan 4.3L 8cyl 5A · RWD · Regular | 4.3L 8cyl 5A | RWD | 21.1 gal80 L | Regular | Not rated | Not rated |
| No trim matches all of these filters. | ||||||
Tank figures are the manufacturer's rated capacity, sorted smallest tank first. Range is tank size times EPA city or highway MPG.Trims marked "Not rated" have no published EPA rating.
How far a 1998 Mercedes-Benz E-Class goes on a tank
Gallons left and the distance they cover at each mark on the fuel gauge, at EPA city and highway mileage. At the combined rating of 26 MPG, a full 21.1-gallon tank covers about 549 miles.
| Gauge | Gallons | Highway miles | City miles |
|---|---|---|---|
| Full | 21.1 | 654 | 485 |
| 3/4 | 15.8 | 491 | 364 |
| 1/2 | 10.6 | 327 | 243 |
| 1/4 | 5.3 | 164 | 121 |
| 1/8 | 2.6 | 82 | 61 |
Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 577 gallons, roughly 27 full tanks.
Fuel gauges aren't perfectly linear and the low-fuel light comes on with a few gallons still in the tank, so plan your stop before the last eighth.
- EPA combined
- 20–26 MPG
- Tailpipe CO2
- 392–444 g/mi
- Source
- EPA ratings
What it costs to fill up a 1998 Mercedes-Benz E-Class
$90.10 to fill the 21.1-gallon tank from empty with regular, at this week's US average of $4.27 a gallon.
| Tank | Fuel | US avg / gal | From empty | From 1/4 tank |
|---|---|---|---|---|
| 18.5 gal | Regular | $4.27 | $78.99 | $59.25 |
| 21.1 gal | Regular | $4.27 | $90.10 | $67.57 |
| 21.1 gal | Diesel | $6.35 | $133.99 | $100.49 |
By region, 21.1-gallon tank
| Region | Regular / gal | Fill from empty |
|---|---|---|
| East Coast | $4.02 | $84.82 |
| Midwest | $4.27 | $90.10 |
| Gulf CoastLowest | $3.70 | $78.07 |
| Rocky Mountain | $4.46 | $94.11 |
| West Coast | $5.42 | $114.36 |
| CaliforniaHighest | $5.89 | $124.28 |
Prices: U.S. Energy Information Administration retail averages for the week of October 26, 2026. This week's prices by state and city.
Your own price
- 18.5-gallon tank$78.99
- 21.1-gallon tank$90.10
- A year of driving (15,000 mi)$2,463
Starts at the US average for regular; type in what your station charges. For other tank sizes, use the fill-up calculator.
E-Class tank size in other years
The tank changed for 1998: 18.5–21.1 gal, down from 21.1 gal on the 1997 E-Class.
| Model year | Tank | Longest highway range |
|---|---|---|
| 2003 E-Class | 18.5–20.6 gal | 494 mi |
| 2002 E-Class | 18.5–21.1 gal | 549 mi |
| 2001 E-Class | 18.5–21.1 gal | 549 mi |
| 2000 E-Class | 18.5–21.1 gal | 570 mi |
| 1999 E-Class | 18.5–21.1 gal | 675 mi |
| 1998 E-Class | 18.5–21.1 gal | 654 mi |
| 1997 E-Class | 21.1 gal | 633 mi |
| 1996 E-Class | 17.2–21.1 gal | 550 mi |
| 1995 E-Class | 18.5–23.8 gal | 690 mi |
| 1994 E-Class | 18.5–23.8 gal | 428 mi |
- 2027
- 2026
- 2025
- 2024
- 2023
- 2022
- 2021
- 2020
- 2019
- 2018
- 2017
- 2016
- 2015
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- 1998
- 1997
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- 1994
1998 Mercedes-Benz E-Class vs similar 1998 sedans
The E-Class has the largest tank of the six 1998 sedans compared here, 21.1 gallons against 19.8 for the Lexus GS 300.
| 1998 model | Tank | Longest highway range |
|---|---|---|
| Mercedes-Benz E-Class | 18.5–21.1 gal | 654 mi |
| Lexus GS 300 | 19.8 gal | 455 mi |
| Audi A6 | 18.5 gal | 463 mi |
| INFINITI I30 | 18.5 gal | 463 mi |
| Acura RL | 18.0 gal | 414 mi |
| Cadillac Catera | 18.0 gal | 396 mi |
Other 1998 sedans of a similar size, one model per brand.
Frequently asked questions
What is the fuel tank capacity of the 1998 Mercedes-Benz E-Class?
The 1998 Mercedes-Benz E-Class holds between 18.5 and 21.1 gallons, depending on the trim. 21.1 gallons is the usual size; the smaller 18.5-gallon tank is on the E320 4MATIC 4dr Wagon AWD.
How many gallons and liters does the 1998 Mercedes-Benz E-Class gas tank hold?
The 1998 Mercedes-Benz E-Class tank holds 70–80 liters, or 18.5–21.1 gallons in US gallons.
Which 1998 Mercedes-Benz E-Class has the biggest gas tank?
The 21.1-gallon tank is on the E300TD Turbodiesel 4dr Sedan, E320 4MATIC 4dr Sedan AWD, E320 4dr Sedan and 1 other trim. The smallest tank, 18.5 gallons, is on the E320 4MATIC 4dr Wagon AWD.
Does the 1998 Mercedes-Benz E-Class tank change with the powertrain?
Yes. Gas: 18.5–21.1 gal; Diesel: 21.1 gal.
Does AWD change the 1998 Mercedes-Benz E-Class gas tank?
No. RWD and AWD versions of the 1998 Mercedes-Benz E-Class use the same 18.5–21.1 gal tank.
How far can a 1998 Mercedes-Benz E-Class go on a full tank?
About 463–654 miles on the highway and 333–485 miles in town, going from full to empty at its EPA ratings. Expect less in practice, since nobody runs the tank dry.
How many miles can a 1998 Mercedes-Benz E-Class go on a quarter tank?
About 164 highway miles or 121 in town from the 21.1-gallon tank, which has roughly 5.3 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.
What gas does the 1998 Mercedes-Benz E-Class take?
Regular unleaded, or Diesel fuel, depending on the engine. The label inside the fuel door confirms it for your car.
How much does it cost to fill up a 1998 Mercedes-Benz E-Class?
At the US average of $4.27 a gallon for regular (EIA, week of October 26, 2026), filling the 21.1-gallon tank from empty costs $90.10. It ranges from $78.07 in the Gulf Coast to $124.28 in California.
How much does a full tank of gas weigh in a 1998 Mercedes-Benz E-Class?
About 148 pounds for the 21.1-gallon tank. Diesel weighs roughly 7 pounds a gallon.
Does the 1998 Mercedes-Benz E-Class have a bigger gas tank than the Lexus GS 300?
Yes. The 1998 Mercedes-Benz E-Class holds up to 21.1 gallons; the 1998 Lexus GS 300 holds up to 19.8.
Sources
- Tank sizes: manufacturer-rated capacities from US-market specifications, checked against independent references. Updated October 2026.
- MPG and range: EPA ratings (fueleconomy.gov). Range is tank size times EPA MPG.
- Fuel prices: U.S. Energy Information Administration, week of October 26, 2026 (this week's prices).
Does your owner's manual say something different? Let us know and we'll fix it. More on how we check the numbers.