VolvoC70 Conv2004Overview/volvo/c70-conv/2004/base/

2004 Volvo C70 Conv

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2004 C70 Conv.

Body PASSENGER CAR

The 2004 Volvo C70 Convertible is a passenger car, and its routine engine-oil service calls for 6.1 quarts of 5W-30 or 10W-30 API oil. In the reliability record for this model, the 2004 model year registers as a low-report data point: it has zero recalls and only 15 owner complaints, with the electrical system cited most often. That profile places it among the cleaner years in the C70 Convertible’s reliability history, meaning researchers can concentrate on standard upkeep and electrical-system checks rather than broad campaign-level defects.

Model year2004200320022001200019991998

Quick specs

Fluid capacities, tune-up values and fuel economy at a glance.

Engine oil capacity6.1 qtOEM · verified
Engine oil type5W-30 / 10W-30 APIOEM · verified
Lug nut torque81 ft-lbsOEM · verified

Fitment & sizes

Replacement part sizes and factory part numbers — battery, bulbs, filters and belts.

From the factory this vehicle uses a BCI 48 · 600 CCA battery, OE oil filter 1275810. Note the factory battery and front wiper blades are now discontinued — plan on a superseded or quality aftermarket equivalent, which the part pages below list where known. Each part links to every other vehicle that shares it, so a part you already stock may fit more of your fleet than you'd expect.

Battery groupBCI 48 · 600 CCAOEM · verified

OE service part numbers OEM · verified

Engine oil filter1275810
Engine air filter9186262
Fuel filter30620512
Battery9459948 discontinued
Front wiper blades31276592 discontinued
Thermostat31293700
Cabin air filter9171296

Full specifications

Engine, drivetrain, dimensions and economy.

Dimensions & weight NHTSA vPIC

Overall length185.8 in
Overall width71.7 in
Overall height56.3 in
Wheelbase104.7 in
Curb weight3448 lb
Track (front / rear)59.8 / 59.8 in
Weight distribution (front / rear)59/41

Service quick specs OEM factory data

Capacities, torques and tune-up values from the factory service manual.

This engine holds 6.1 qt of 5W-30 / 10W-30 API engine oil, DOT 4 brake fluid. Torque lug nuts to 81 ft-lbs, the oil drain plug to 28.0 ft-lbs. The firing order is 1-2-4-5-3.

Lubricants & capacities

Automatic Transmission FluidATF
Automatic Transmission Fluid Capacity8
Brake FluidDOT 4
Engine Oil5W-30 · API · 10W-30
Engine Oil Capacity6.1 qt
Engine Oil5W-30 · API · 10W-30
Engine Oil Capacity6.1 qt
Manual Transmission FluidVolvo part number 1161745

Engine torques

Crankshaft Pulley and/or Damper BoltsCenter bolts, step 1: 133 ft-lbs
Crankshaft Pulley and/or Damper Bolts133 ft-lbs
Intake Manifold to Engine Bolts15 ft-lbs
Exhaust Manifold to Cylinder Head Bolts19 ft-lbs
Engine Oil Pan Drain Plug24.0 ft-lbs
Engine Oil Pan Drain Plug28.0 ft-lbs
Oil Pump to Cylinder BLock Bolts/Studs7 ft-lbs

Chassis torques

Lug Nuts81 ft-lbs
Front Wheel Hub37 ft-lbs

Ignition

Cylinder Firing Order1-2-4-5-3
Curb Idle Speed (No Load)850 rpm
Curb Idle Speed Variance (No Load)50 rpm
Ignition Coil Primary Resistance.50-1.5 ohms
Ignition Coil Secondary Resistance8000-9000 ohms
Ignition Coil Primary Resistance.05-1.5 ohms
Ignition Coil Secondary Resistance8000-9000 ohms
Spark Plug Gap0.020-0.030 in

Battery & A/C

RefrigerantR134a
Refrigerant CapacityCold market vehicles, 1.80; warm market vehicles, 1.70; refer to decal on lefthand suspension tower to determine vehicles market type. lbs
Oil TypeVolvo part No. 11 61 407-0 or equivalent.
Oil Capacity6.76 oz
Standard BCI Group Number48
Standard BCI Cranking Performance600 cca
Standard BCI Group Number48
Standard BCI Cranking Performance600 cca

Brakes

Torque Caliper to Bracket22 ft-lbs
Torque to Knuckle74 ft-lbs / 44 ft-lbs
Minimum Pad ThicknessFront: 0.079; Rear: 0.079 in
Rotor Runout Limit0.0016 in / 0.0031 in
Rotor Minimum Machining0.937 in
Rotor Discard at or Under0.906 in

Multi-step torque procedures OEM · verified

Connecting Rod (Large End) Bearings — tightening sequence 1 stages
115 ft. lbs., Step 2: 9015 ft. lbs
Engine Flywheel Bolts — tightening sequence 1 stages
133 ft. lbs., Step 2: 6533 ft. lbs

Factory maintenance schedule OEM · verified

Normal service, condensed from the factory interval matrix.

Under the factory schedule, replace the engine oil and filter every 7,500 mi; spark plugs every 60,000 mi; coolant every 15,000 mi. The big-interval services (every 15,000 mi for coolant, and the transmission fluid) are the ones owners most often skip — on a lower-mileage example, assume the original fluids are still in it and check them first.

Every 7,500 miBrake Linings (inspect) · Brake Rotor (inspect) · CV Joint Boot (inspect) · Driveshaft (inspect) · Driveshaft U-Joint (inspect) · Engine Oil (drain & refill)
Every 15,000 miBattery (inspect) · Brake Hydraulic System (drain, refill & bleed) · Brake Shift Interlock Solenoid (inspect) · Cabin Air Filter (replace) · Door Hinge (lubricate) · Engine Coolant System (leak inspection)
At 22,500 miTire & Wheel Assembly (rotate)
Every 30,000 miBrake Line (inspect) · Fuel Line (inspect)
Every 37,500 miEngine Air Filter Element (replace)
Every 45,000 miPCV Hose (inspect)
At 60,000 miCV Joint Boot (inspect) · Driveshaft (inspect) · Driveshaft U-Joint (inspect) · Exhaust System (Complete) (inspect) · Steering System (inspect) · Suspension System (inspect)
Every 60,000 miSpark Plugs (replace)
Every 75,000 miTiming Belt (replace)

Reliability & federal safety record

Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.

Owner complaints about the 2004 Volvo C70 Conv lead in one area — the electrical system, 3 of 15 reports (20%), well ahead of the next concern. NHTSA has issued no recalls for this vehicle, so these are owner-reported concerns only. 1 of the reports describe a crash and 0 a fire — a small share of the total, but worth weighing against the electrical system pattern above. These are tallies of what owners actually reported to the federal government, not an editorial score — and higher-selling models naturally rack up more reports.

0
Open recalls
NHTSA campaigns
165
Service bulletins
Manufacturer communications
0
ODI investigations
Office of Defects Investigation
15
Owner complaints
1 involved a crash · 0 a fire

Owner complaints filed with NHTSA, by component

All 15 complaints on record, top 8 components.

Electrical System3
Power Train3
Vehicle Speed Control2
Air Bags,Electronic Stability Control (Esc)1
Air Bags1
Power Train,Engine1
Air Bags,Structure,Wheels1
Electrical System,Fuel/Propulsion System1

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

No recall campaigns on record with NHTSA for this vehicle as of the last data refresh.

Technical service bulletins NHTSA · verified

Showing 5 of 165 bulletins on record with NHTSA.

BulletinDateComponentSummary
37809.1.12026-04-07Unknown Or OtherThis is a TJ text only - The purpose of this TJ is to be a master reference list to…
192452025-12-06Unknown Or OtherThis is a Technical Journal. Vehicle type and platform identification.
85012025-04-10Exterior LightingThis is a Technical Journal: Remote connection, BOMGAR application. Before joining a…
S103032025-02-21Unknown Or OtherVolvo Cars USA LLC and Volvo Car Canada LTD on behalf of the Volvo Car Corporation has…
S103032025-02-13Unknown Or OtherVolvo Cars USA LLC and Volvo Car Canada LTD on behalf of the Volvo Car Corporation has…

Common OBD-II trouble codes

The most common OBD-II codes for this vehicle's emissions system. These are standardized SAE J2012 definitions, not vehicle-specific fault reports.

P0420
Catalyst system efficiency below threshold — Bank 1
P0300
Random / multiple cylinder misfire detected
P0171
System too lean — Bank 1
P0455
Evaporative emission system leak detected — large leak
P0128
Coolant thermostat below regulating temperature
P0442
Evaporative emission system leak detected — small leak

VIN tools

Decode factory build data for a specific vehicle by VIN.

VIN
Decode a VIN to confirm the transmission and build data for a specific C70 Conv. OEM
Build data
Plant, GVWR class, engine and body data for any 17-character VIN.
Recalls
Check open recall campaigns against a specific vehicle by VIN.

Vehicles with shared specs

Find every vehicle that shares this one's battery, bulbs, oil capacity, platform or parts.

Reference guides

Cross-vehicle references for the kinds of data on this page.

Frequently asked

How much oil does the 2004 C70 Conv take?

6.1 qt of BELOW 86 degrees F: 5W-30 API, -4 degrees F TO 104 degrees F: 10W-30 API, per the factory manual.

Does the 2004 C70 Conv have open recalls?

NHTSA lists 0 recall campaign(s) for this model year. Check your specific vehicle by VIN.